1. Safety Information
1.1 General Precautions
- This product is intended for floor cleaning in home environments only. Do not use it outdoors (e.g., on balconies), on non-floor surfaces (e.g., sofas), or in commercial/industrial settings.
- Always power off the base station and robot before cleaning or maintenance.
- Do not use the robot or base station as toys. Supervise children and pets, keeping them away during operation.
- Do not use this product in rooms where infants or young children are sleeping.
- Do not allow individuals with physical, mental, or sensory impairments to use or operate this product without supervision.
- If used in a suspended environment (e.g., duplex floor), ensure a sturdy physical barrier is in place to prevent falls and potential injury/damage.
- Keep limbs and other body parts away from the rotating brush head and machine gaps to prevent injury.
- Before use, clear scattered wires, sundries, and fragile/valuable items from the floor to prevent entanglement, damage, or obstruction.
- Ensure no standing water on the floor to prevent water damage to the robot.
- Do not use to clean burning objects (e.g., cigarette butts, matches, ashes) or flammable/explosive items (e.g., lighters, gasoline, toner).
- Ensure all components (dust bin, filter, dust bag, side brush, mop, main brush, main brush cover) are installed correctly before use.
- Do not use the product without a dust bag.
- Do not douse the robot or base station with any liquid.
- Do not use to clean long-haired carpets; some dark-colored carpets may not be cleaned properly.
- If the product is damaged, discontinue use immediately and contact customer service.
- Do not store or use in environments with temperatures above 40°C (104°F) or below 0°C (32°F), or where there are liquids or viscous substances on the floor.
- Do not place objects on the robot, base station, or dust collection port. Do not cover or block them.
- Avoid hard or sharp objects (e.g., renovation waste, glass, nails) on the floor to prevent scratching the robot or floor.
- Do not place low objects like floor mats or shoes near stairways, as this may interfere with anti-fall sensors and cause the robot to fall.
- Any losses or damages from improper use, misuse, or inability to use this product are the user's responsibility.
1.2 Battery and Charging Precautions
- This product is compatible only with the manufacturer-provided charging base station.
- Ensure a qualified power source with reliable grounding is used to avoid electric shock.
- If grounding is unreliable, have a professional electrician rectify it before use.
- Do not disassemble, repair, or modify the battery or charging base station without authorization.
- If the charging base station will not be used for an extended period, unplug the power plug.
- Dispose of used batteries properly through a professional recycling institution.
- Do not use third-party batteries, chargers, charging cables, or charging docks.
- Do not wipe or clean charging pins with wet wipes, damp cloths, or wet hands.
- Use this product in an environment where the power supply voltage matches the voltage marked on the base station.
- When transporting, ensure the product is powered off and use the original packaging.
- Do not use a power cord not included with the product to avoid smoking, overheating, or fire.
- In areas prone to thunderstorms or unstable power supply, take appropriate protective measures.
- Using this product with any type of power converter is prohibited; it will void the warranty and pose dangers.
- Do not use a damaged power cord. If damaged, stop use and contact customer service.
- For long-term storage, fully charge the robot, power it off, and store in a cool, dry place. Charge at least monthly to prevent over-discharge.
1.3 Laser Safety Information
This product is a Class 1 consumer laser product, safe under normal use conditions. Its laser energy is below the threshold for eye injury and will not cause biological damage to the cornea or skin. All accessible laser emission is below Class 1 AEL (Accessible Emission Limit) under normal and single fault conditions. Dangerous laser exposure is only possible after manual destructive disassembly.
Caution: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
- Do not stare into the laser aperture.
- Do not point the laser aperture toward people or animals.
- Do not attempt to modify, disassemble, or repair the laser module.
- Do not operate the product if the laser sensor housing is cracked, damaged, or removed.
- If the protective housing is damaged, stop using the product immediately and contact customer service.
The laser aperture is located inside the Point Laser Sensor. Do not look directly into this area when the robot is operating.
1.4 Save These Instructions
To satisfy RF exposure requirements, a separation distance of 20 cm or more should be maintained between this device and persons during device operation. To ensure compliance, operations at closer than this distance are not recommended. The antenna used for this transmitter must not be co-located in conjunction with any other antenna or transmitter.
| Symbol | Description |
|---|---|
| For indoor use only | |
| --- | Direct current |
| ~ | Alternating current |
| D | Charged by original adapter |
2. Product Overview
2.1 Product Features
The Lefant M215/M210 PLUS is a versatile robot vacuum designed for efficient home cleaning. Key features include:
- Sweep & Mop in One: Combines vacuuming and mopping functionalities for comprehensive cleaning.
- 6000Pa Suction Power: Provides strong suction to effectively pick up dust, hair, and pet food.
- 75-Day Self-Emptying: The auto-empty station automatically collects dust, offering up to 75 days of hands-free cleaning with a 2L dust bag.
- ToF Laser Navigation & Real-Time Mapping: Intelligent path planning and accurate mapping for efficient coverage and navigation.
- Ultra-Slim Body (7.90cm): Allows the robot to easily reach low spots under furniture, ensuring zero blind spots.
- V-Shaped Roller Brush & Dual-Comb System: Designed to prevent hair tangling, ensuring efficient cleaning, especially for pet hair.
- 190° PSD Obstacle Avoidance: Detects obstacles as low as 2cm, providing precise navigation and avoiding collisions.
- Carpet Intelligent Recognition: Automatically adjusts suction on carpets and avoids carpets when mopping.
- Multi-Level Mapping: Supports mapping for multiple floors.
- 2.4G/5G WiFi & App Control: Connects to home WiFi for remote control, scheduling, and custom no-go zones via the Lefant App.
- Voice Control: Compatible with Amazon Alexa and Google Assistant.
2.2 Product Video Overview
Video: An animated overview of the Lefant M210 PLUS robot vacuum's features, including its slim design, V-shaped roller brush, obstacle avoidance, mopping function, and auto-empty station.
2.3 Robot Components (Top and Bottom View)

Figure 2.3.1: Robot Vacuum and Auto-Empty Station with App Interface

Figure 2.3.2: V-shaped roller brush and double comb teeth for anti-tangling.
Robot (Top View):
- ToF Sensor
- Start/Pause Button
- Anti-Collision Strip
- Obstacle Avoidance Sensor
Robot (Bottom View):
- Cliff Sensors
- Omnidirectional Wheel
- Air Outlet
- Side Brush
- Main Brush Cover Latch
- Main Brush
- Main Brush Cover
- Main Wheels
- Mop Cloth
- Dustbin Latch
- Charging Contacts
- Water Tank Assembly
2.4 Base Station Components

Figure 2.4.1: Automatic Dust Collection with 2L Dust Bag and 2.4GHz WiFi

Figure 2.4.2: Robot Vacuum and Auto-Empty Station with App Interface
Base Station (Front View):
- Base Station Top Cover
- Dock Location Beacon
- Charging Contacts
- Dust Collection Suction Inlet
Base Station (Back Side):
- Power Port
2.5 Accessories
- Dustbin (with Filter Screen Bracket, HEPA Filter, Dustbin Lid)
- Power Cord
- Mop Cloth (with Hook and Loop Pads)
- Dust Bag
- User Manual (this document)
- Side Brush
- Cleaning Brush
3. Setup
3.1 Preparation Work
- Clear the Area: Before starting, clean up scattered wires, hard objects, and sharp objects (e.g., iron nails, glass) from the floor. Move away items that are easy to tip over, fragile, valuable, or potentially dangerous to prevent entanglement, obstruction, or damage.
- Suspended Environments: If using in a suspended environment (e.g., duplex floor), ensure a firm physical barrier is in place to prevent personal injury or property damage from accidental falls.
- Water on Floor: Ensure there is no accumulated water on the floor. Do not wash the main unit with water to prevent water penetration damage.
- Install Side Brush: Align and install the side brush onto the robot. You will hear a "click" sound when it is correctly installed.
- Remove Protective Films: Remove all protective films from the robot and the base station.
3.2 Base Station Installation
Place the base station on a flat, hard floor indoors. Insert the power cord firmly into the power socket. Ensure there are no objects within 0.5 meters (1.64 ft) on both sides of the charging station and within 1.5 meters (4.92 ft) in front of it to prevent signal blockage. Avoid placing reflective objects (e.g., floor mirrors) around the charging station, as this may interfere with signal reflection.
3.3 Power On and Initial Charge
- Press and hold the power button (
) for 3 seconds to power on the robot. The robot will automatically power on when charging. - Once the Power Indicator remains solid, place the robot in front of the Charging Base (ensure the Base is powered on).
- Short press the power button (
) twice: the robot will automatically return to the Base to charge.
For daily use, keep the robot docked on the Base to maintain optimal battery performance.
During charging:
- When the battery level is less than 50%, the purple light breathes.
- When the battery level is greater than 50%, the blue light breathes.
3.4 Mopping Function Setup
- Open the water tank stopper, pour in an appropriate amount of clean water, and then close the stopper.
- Remove the mop cloth, soak it thoroughly in clean water, wring it until it reaches a semi-dry state with no dripping water, then reinstall it onto the water tank assembly.
- Precisely align the mop cloth with the adhesive area on the water tank assembly, then press the mop cloth firmly to attach it securely to the bottom.
- Precisely align the water tank fixing posts with the bracket mounting holes, press vertically downward until a "click" sound is heard, ensuring that the water tank assembly is fully attached to the bottom of the main unit. Once installed, the mopping function can be activated.
3.5 App Download and Connection
- Download the App: Search for "Lefant" in your device's app store (iOS or Android) or scan the QR code provided in the manual to download and install the Lefant app.
- Enter Network Configuration Mode: Press and hold the Power button (
) for 6 seconds until you hear two 'beep-beep' tones, then release. The indicator light will flash, indicating the main unit has entered Network Configuration Mode. - Add Device: Open the Lefant mobile app, click the "Add Device" or "+" button, and follow the in-app guidance to add your device.
Note: The Wi-Fi wireless connection of this product supports 2.4GHz frequency band networks only. If the robot remains in the connection-waiting state for more than 3 minutes, the Wi-Fi function will be turned off automatically. To reconnect, put the robot into the network configuration mode again.
4. Operating Instructions
4.1 Button Operation
- Press and hold for 3 seconds: Power on (The robot will automatically power on when charging.)
- Single click: Start or pause cleaning.
- Double click: Automatically return for charging.
- Press and hold for 6 seconds: Enter the network configuration state (for App pairing).
- Press and hold for 12 seconds: Power off.
4.2 Button Light Effects
- Purple light breathing: Charging (Battery level < 50%)
- Blue light breathing: Charging (Battery level > 50%)
- Blue light flashing: The robot enters the network configuration state.
- Steady Red Light: The robot automatically returns for charging due to low battery level.
4.3 Start Cleaning
Press the power button (
) briefly to start cleaning. The robot will dynamically plan the cleaning route and efficiently cover the cleaning area in a default back-and-forth pattern.
Note:
- To ensure smooth return to the base station, it is recommended to let the robot start cleaning automatically from the charging state. Do not move the base station during cleaning.
- If the robot has a low battery, charge it first before starting cleaning.
- Before cleaning, tidy up all wires and valuable items to prevent power cuts, damage, or entanglement.
4.4 Pause Cleaning
When the robot is in operation, press the power button (
) briefly once to pause. To make the robot return to the charging dock, press the power button (
) briefly twice. In the paused state, press the power button (
) briefly once to resume cleaning. Alternatively, place the paused robot back onto the base station (ensuring alignment with the charging contacts) to terminate the cleaning task.
4.5 Sleep Mode
If the robot remains idle for more than 5 minutes, it will automatically enter sleep mode and can be woken up by pressing any button. When the battery level is below 70%, the robot will shut down after 24 hours of standby. When the battery level is below 30%, the robot will shut down 10 minutes after entering sleep mode.
4.6 Automatic Dust Collection
After the robot finishes cleaning, it will automatically return to the base station for automatic dust collection.
Note: Ensure that the base station top cover and the disposable dust bag are properly installed before using the dust collection function.
4.7 Charging
After cleaning, the robot will automatically return to the base station for charging. If the robot fails to locate the base station, it will return to its starting position. Manually place the robot back to the base station for charging if needed.
5. Maintenance
General Note: Before cleaning or maintaining the base station and the robot, ensure they are powered off. The frequency of parts replacement depends on actual usage conditions. Replace relevant parts if abnormal wear occurs to avoid affecting cleaning performance.
5.1 Dust Bin
- Remove the dustbin from the robot.
- Press the dustbin buckle to open the dustbin and clear the debris inside it.
- Remove the filter screen bracket and take out the HEPA filter.
- Clean the HEPA filter with the cleaning brush. Do not wash it with water. Replace the filter with a new one in a timely manner according to its dirtiness.
- The main body of the dustbin and the filter screen bracket can be washed with water. After cleaning, air-dry them for at least 24 hours until completely dry before reinstalling.
5.2 Mop Cloth
- Remove the water tank assembly and the mop cloth.
- Empty any remaining clean water from the water tank.
- Clean the mop cloth promptly and air-dry it thoroughly to prevent bacterial growth and odor. A dirty mop cloth will compromise cleaning performance. Replace regularly based on wear.
5.3 Main Brush
- Open the main brush cover, then take out the main brush.
- Remove hair and debris tangled around the main brush. Reinstall the main brush onto the main unit, ensuring it is properly fitted.
5.4 Side Brush
After cleaning the side brush, reinstall it onto the main unit for continued use. If the brush bristles are deformed or severely worn, replace the side brush in a timely manner.
5.5 Main Unit Sensors and Components
Wipe and clean each sensor of the main unit with a soft dry cloth, including:
- ToF Sensor
- Obstacle Avoidance Sensor
- Cliff Sensors (clean once a week to prevent dust from blocking and affecting the signal).
Clean the omnidirectional wheel, side wheels, and charging contacts regularly according to usage conditions.

Figure 5.5.1: 190° PSD Obstacle Avoidance in action.

Figure 5.5.2: Carpet Intelligent Recognition.
5.6 Base Station Maintenance
Do not rinse the base station with water. Disconnect the power supply before performing maintenance.
- Wipe the charging contacts on the base station with a dry cloth to ensure smooth charging.
- Wipe the dock location beacon on the base station with a dry cloth to avoid signal interference.
- Wipe the suction inlet on the base station with a dry cloth.
- Open the base station top cover, then take out the dust bag and discard it. Do NOT let the garbage inside spill into the dust container, and keep the dust collection bin clean.
- Install a new dust bag into the slot. Push the dust bag fully into place to prevent garbage leakage or damage. Lay the dust bag flat and then close the base station top cover, ensuring it is fitted and tightly sealed.
6. Troubleshooting
When the robot encounters issues, its red indicator light will either turn on or flash, and beep with varying durations and intervals. The following table provides a summary of the corresponding causes and solutions:
| No. | Fault Cause | Prompt Sound | Solution |
|---|---|---|---|
| The red light is on | |||
| 1 | Abnormal driving wheel | 1 beep for three times | Check whether the driving wheel is tangled, and clean it up. |
| 2 | Abnormal side brush | 2 beeps for three times | Check whether the side brush is tangled, and clean it up. |
| 3 | Abnormal fan | 3 beeps for three times | Check the waste in the dust bin and the air duct. |
| 4 | Undetected dust bin | 5 beeps for three times | Install the dust bin in the robot. |
| 5 | Abnormal recharge | 6 beeps for three times | Abnormal charging, manually move the main unit to the charging cradle. |
| The red light is flashing | |||
| 1 | Ground-detection alarm | 2 beeps for three times | The robot hangs in the air. Move it to the ground. |
| 2 | Dilemma elimination alarm | 3 beeps for three times | Fail to get rid of a dilemma; move to an open place. |
| 3 | Low Battery | 4 beeps for three times | Move the robot to the docking station for charging. |
| 4 | Abnormal adapter | 5 beeps for three times | Clean the electrode and ensure the original adapter. |
If the above methods don't resolve the problem, try the following: Hold the start/pause button on the robot for 12 seconds. After hearing a long "beep", turn off, then long press for 3 seconds to restart.
6.1 Frequently Asked Questions
| Problem Type | Solutions |
|---|---|
| Unable to Power On | Battery power is insufficient. Dock with the base station to charge. Battery temperature is too low or too high; use in 0-40°C (32-104°F). |
| Unable to Charge | Base station not powered: Confirm both ends of power cord are plugged in. Poor contact: Clean the charging contacts of the base station and robot. |
| Unable to Return to Base Station | Robot did not start cleaning from base station. Too many obstacles near base station; clear surrounding obstacles. Base station moved or lost power during cleaning; manually place robot back or check base station power. |
| Unable to Connect to WiFi | Incorrect WiFi network password. Weak WiFi signal; ensure robot is within good WiFi coverage. Abnormal WiFi connection; long-press power button for 6 seconds to re-enter network configuration mode and use latest app version. |
| Unusual Noise During Cleaning | Omnidirectional wheel accumulated dust or entangled by hair; use screwdriver to pry out and clean. Foreign objects entangled on main brush, side brush, or drive wheel; pause robot, check and clean. Hard objects entered dust box; check dust box and opening, clean foreign objects. |
| Robot Misses Areas During Cleaning | Obstacle avoidance, anti-fall, or other sensors are dirty; wipe clean with soft dry cloth. Doors of rooms are not open; ensure they are open. Steps or thresholds higher than 2cm (0.8 inches) in cleaning area; robot cannot climb over. |
| Dust collection effect is poor or abnormal noise during collection | Filter screen, dust collection air duct, port, inlet, dust bin, and dust bag are blocked; clean them. |
| Cannot automatically collect dust | Cover plate of dust collection chamber not properly installed. Robot will not actively collect dust during Do Not Disturb period; adjust cleaning time, Do Not Disturb mode, or manually start collection. |
| Reduced Cleaning Performance or Dust Shedding | Dust box is full; clean dust box. Filter is clogged; clean or replace filter. Main brush entangled with foreign objects; clean main brush. |
| Robot has an abnormal cleaning performance | Press and hold power button for 12 seconds to turn off, then turn on again. |
7. Specifications
| Feature | Specification |
|---|---|
| Brand Name | Lefant |
| Model | M215 / M210 PLUS |
| Function | Wet and Dry (Sweep & Mop in One) |
| Suction Power | 6000Pa |
| Navigation Type | ToF Laser Navigation, Planned Type Cleaning Route |
| Obstacle Avoidance | 190° PSD Obstacle Avoidance (detects obstacles as low as 2cm) |
| Self-Emptying | Up to 75 days hands-free with 2L dust bag |
| Dust Box Capacity | >2 L |
| Filter Type | HEPA |
| Body Dimensions (mm) | 320*320*90 (Ultra-Slim 7.90cm height) |
| Package Dimensions (cm) | Length: 33, Width: 33, Height: 23 |
| Weight | >10 kg (Package weight: 5.64 kg) |
| Battery Life | 1 hour and 40 minutes - 2 hours |
| Power (W) | 11-20W |
| Voltage | 110V-240V |
| Connectivity | 2.4G/5G WiFi, App Control, Alexa, Google Assistant |
| Number of Operating Modes | 3-4 |
| Timing Reservation | Yes |
| Certification | CB, CE, ROHS |
8. User Tips
- Initial Cleaning: It is recommended to supervise the robot during its first cleaning cycle to address any potential minor issues and ensure smooth autonomous cleaning thereafter.
- Avoid Hard Objects: Prevent the robot from sucking up hard or sharp objects (e.g., decoration waste, glass, iron nails) to avoid scratching the robot or your floors.
- Charging Behavior: If the robot is powered off while charging, it will automatically turn on. If the battery is very low, you may need to manually place the robot directly onto the base station to initiate charging.
- Mop Cloth Care: After each use, clean and air-dry the mop cloth thoroughly. Empty the water tank promptly to prevent odors and bacterial growth.
- Dust Bag Supply: The product comes with a dust bag. It is advisable to keep spare dust bags on hand for when the current one needs replacement.
9. Warranty & Support
9.1 Warranty Information
This product comes with a 1-year warranty covering repair or replacement of malfunction devices at the company's discretion. The warranty is void if altered. To be eligible for warranty coverage, the serial number and all accessories must be provided.
Exclusions: The warranty will not apply if defects relate to:
- Consumable parts (filters, brushes) subject to normal wear and tear, requiring regular maintenance/replacement.
- Defects from rough/inappropriate handling, misuse, neglect, accident, fire, water, or other acts of nature.
- Improper operation/maintenance, or use not in accordance with product instructions or improper voltage supply.
- Accident, abuse, misapplication, or unauthorized repair, modification, or disassembly.
- Failure to adequately package the product for transportation.
- Use of parts not in accordance with product instructions or parts/accessories not recommended by the company.
- Use in a commercial environment (product designed for residential use only).
- Consequential and incidental damages.
- Products purchased from unauthorized dealers/resellers.
- Products used outside the country of purchase.
- Lost and/or stolen products.
9.2 Contact Information
If you encounter situations not properly addressed in this user manual, please contact Lefant's after-sales service:
- Website: www.lefant.com
- Email (NA): support.us@lefant.com
- Email (EU): support.eu@lefant.com
- Email (SG): support.sg@lefant.com
- Email (MY): support.my@lefant.com
- Email (JP): support.jp@lefant.com
- Email (Other countries): support@lefant.com
- Facebook: @LEFANTOFFICIAL
- Community: facebook.com/groups/Lefantofficalcommunity
Manufacturer: Shenzhen USEER Robotics Co., Ltd.
Address: Building 2, Fashion Brand Industrial Park, E'Bu Town, Shenzhen-Shanwei Special Cooperation ZoneShenzhen, Guangdong, China.
10. Compliance Information
10.1 Correct Disposal of this Product
This marking indicates that this product should not be disposed of with other household waste throughout the EU. To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsibly to promote the sustainable reuse of material resources. To recycle your used device, please use the return and collection systems or contact the retailer where the product was purchased. They can safely recycle this product.
10.2 Federal Communications Commission (FCC) Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.
RF exposure warning: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be collocated or operating in conjunction with any other antenna or transmitter.
10.3 IC Caution (Innovation, Science and Economic Development Canada)
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device.
Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
RF exposure statement: The equipment complies with IC Radiation exposure limit set forth for uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.
10.4 CE DOC (Declaration of Conformity)
Hereby, Shenzhen USEER Robotics Co., Ltd. declares that the radio equipment type M215/M210 PLUS series is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at: cn.useerobot.com.