1. Introduction
The AERLANG TENS EMS Muscle Stimulator AS2080 is a versatile device designed for pain management, muscle strengthening, and relaxation. It combines Transcutaneous Electrical Nerve Stimulation (TENS) for pain relief, Electrical Muscle Stimulation (EMS) for muscle conditioning, and a RELAX mode for soothing comfort. This manual provides essential information for safe and effective use of your device.

Image: The AERLANG TENS EMS Muscle Stimulator, highlighting its pain relief capabilities.
2. Safety Information and Precautions
Please read all safety instructions carefully before using the device. Improper use can lead to injury or device malfunction.
- Skin Preparation: Clean the skin where electrodes are applied. Grease and body hair can affect electrode adhesion and effectiveness.
- Not for Specific Groups: This device is not suitable for children or pregnant women. Consult a healthcare provider if you have any medical conditions.
- Secure Connections: Ensure electrode leads are securely connected and pads are firmly placed on the skin before turning on the device. Do not adjust intensity or reposition pads while the program is running. Always pause or power off the device first.
- Discomfort: If you experience any discomfort, such as skin itching, pain, or muscle contractions that are too intense, stop using the TENS unit immediately and consult your healthcare provider.
- Pad Usage: Two pads should always be used together as a pair. Always peel off the protective film from the pads before use. To avoid electrical short circuits, do not connect two pads to each other.
- Pad Application: Do not apply ointments or solvents to pads or skin before use. Avoid using pads on sweaty, oily, hairy, or uneven areas.
- Pad Placement: Do not overlap pads during application. Do not move pads while they are active.
- Hygiene: Do not share pads with others to prevent irritation or infection.
- Pad Care: Do not touch the gel to remove pads; grip the edges, not the wires.

Image: Important safety notes regarding TENS unit usage, including skin preparation and conditions for use.

Image: Precautions for handling and applying electrode pads.
3. Package Contents
Verify that all items are present in your package:
- AERLANG TENS EMS Muscle Stimulator Unit (AS2080)
- 16 Reusable Electrode Patches (various sizes)
- Electrode Wires (Dual plug)
- USB Charging Cable
- Pads Holder
- User Manual (English/French)

Image: A visual representation of all items included in the AERLANG TENS EMS Muscle Stimulator package.

Image: Another view of the complete set of the TENS EMS Muscle Stimulator and its accessories.
4. Product Features
- Three Mode Functionality: TENS for pain management, EMS for muscle strengthening, and RELAX for soothing relaxation.
- Dual Channel Control: Independently control two channels to treat multiple body parts simultaneously.
- 24 Modes & 30 Intensity Levels: Offers a wide range of customizable treatment options.
- LCD Display: Bright screen with intuitive icons and buttons for easy operation.
- Rechargeable Lithium Battery: Built-in powerful battery for cordless operation.
- Timer Function: Adjustable session times from 10 to 90 minutes.
- Lock Screen Function: Prevents accidental key presses during treatment.
- Automatic Shut-off: Device turns off after 5 minutes of inactivity to conserve energy.
- Memory Function: Retains the previously used mode for convenience.

Image: Overview of the three primary treatment modes: TENS, EMS, and RELAX.

Image: Detailed breakdown of the 24 modes across TENS, EMS, and RELAX categories.
5. Setup Guide
- Charge the Device: Before first use, fully charge the device using the provided USB charging cable. The battery indicator on the LCD screen will show charging status.
- Connect Electrode Wires: Plug the electrode wires into the ports on the top of the TENS unit.
- Attach Electrode Pads: Connect the electrode pads to the ends of the electrode wires. Ensure a secure connection.
- Prepare Skin: Clean and dry the skin area where you intend to apply the pads.
- Apply Pads: Peel the protective film from the electrode pads and firmly place them on the desired treatment area. Remember to use two pads per channel.

Image: Visual instructions for connecting pads, wires, and powering on the device.
6. Operating Instructions
- Power On: Slide the On/Off switch located on the top of the unit to the 'On' position. The LCD screen will light up.
- Select Channel and Mode:
- Press the "<" and ">" buttons to navigate through the 6 main icons on the screen. Each icon contains different built-in modes (4 modes per icon).
- Press the "M" button to choose the desired mode within the selected icon.
- Adjust Intensity: Press the "+" button to gradually increase the intensity and the "-" button to decrease it. Start with a low intensity and increase gradually until you feel a comfortable, yet effective, sensation.
- Set Timer: Press the "T" button to adjust the treatment time (10-90 minutes). A short press changes the time, a long press activates the lock screen function.
- Lock Screen: To prevent accidental changes during treatment, press and hold the "T" button. A lock icon will appear on the LCD. Press and hold "T" again to unlock.
- Power Off: Slide the On/Off switch to the 'Off' position when finished. The device will also automatically shut off after 5 minutes of inactivity.

Image: Step-by-step instructions for operating the device's controls.
7. Modes and Intensity Levels
The device offers 24 distinct modes across TENS, EMS, and RELAX categories, with 30 adjustable intensity levels.
- TENS Modes (Pain Relief): Typically modes 1-8. Designed to block pain signals.
- EMS Modes (Muscle Conditioning): Typically modes 9-16. Designed to stimulate muscle contractions for strengthening and recovery.
- RELAX Modes (Massaging Body): Typically modes 17-24. Designed for gentle massage and relaxation.
Intensity levels range from 1 to 30:
- Level 1-6: Low intensity, gentle sensation.
- Level 7-12: Moderate intensity.
- Level 13-20: Strong intensity.
- Level 21-30: Top intensity, for experienced users.

Image: Visual guide to the 30 intensity levels and their corresponding sensation categories.
8. Electrode Pad Application and Care
Proper application and care of electrode pads are crucial for effectiveness and longevity.
- Application: Ensure skin is clean and dry. Apply pads firmly to the desired area.
- Reusability: The advanced gel pads are designed for superior adhesion and can be reused up to 50 times with proper care.
- Storage: After each use, reattach the protective film to the pads and store them on the provided pads holder or in a sealed bag to prevent drying.
- Cleaning: If pads lose stickiness, gently wipe the adhesive surface with a damp cloth (water only) and let air dry. Do not use soap or alcohol.
- Replacement: Replace pads when they no longer adhere well or if you experience reduced sensation or discomfort during use.

Image: Demonstrating the reusability and proper handling of the gel electrode pads.
9. Charging the Device
The AERLANG TENS EMS Muscle Stimulator is equipped with a built-in rechargeable lithium-ion battery.
- Connect the provided USB charging cable to the charging port on the device.
- Plug the other end of the USB cable into a compatible USB power adapter (not included) or a computer USB port.
- The battery icon on the LCD screen will indicate charging status.
- A full charge provides extended usage time.
10. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Battery is depleted. | Charge the device fully. |
| No sensation or weak sensation. |
|
|
| Skin irritation or discomfort. |
|
|
| Screen is locked. | Lock function activated. | Press and hold the "T" button to unlock the screen. |
11. Specifications
| Model Number | AS2080 |
| Dimensions | 9.5 x 5.5 x 11 cm |
| Weight | 62.4 Grams |
| Power Source | Battery Powered (1 Lithium Ion battery, included) |
| Material | Plastic |
| Channels | Dual Channel |
| Modes | 24 (TENS, EMS, RELAX) |
| Intensity Levels | 30 |
| Timer Settings | 10-90 minutes |
| Manufacturer | SHENZHEN ASTEC TECHNOLOGY CO., LTD. |
| Country of Origin | China |
12. Product Videos
Watch these official videos for a visual guide on using your AERLANG TENS EMS Muscle Stimulator.
Product Overview (0:56)
Video: A brief overview demonstrating the key features and benefits of the AERLANG TENS EMS Muscle Stimulator.
Detailed Usage Guide (2:29)
Video: A comprehensive guide on how to set up, operate, and select modes and intensity levels on the device.
13. Warranty and Support
For warranty information or technical support, please refer to the contact details provided in your product packaging or contact the seller directly. Keep your purchase receipt as proof of purchase.
Manufacturer: SHENZHEN ASTEC TECHNOLOGY CO., LTD.
