1. Introduction
The Maxto M3S is an advanced motorcycle helmet headset designed to enhance your riding experience with integrated communication, video recording, and entertainment features. It combines a Bluetooth intercom system, a 1440p video recorder, FM radio, and robust waterproof capabilities, all controlled via an intuitive interface. This manual provides detailed instructions for installation, operation, maintenance, and troubleshooting to ensure optimal performance and safety.

Image: Maxto M3S unit highlighting 2K HD video capability.
2. Product Features
- Integrated Functions: Video recording, photo taking, Bluetooth intercom, music listening, and FM radio.
- High-Quality Video: 1440P video resolution with a Sony HD wide-angle lens (120°).
- Advanced Imaging: F2.0 large aperture, IMX image sensor, 6G+IR glass lens for HD picture quality, night vision enhancement, deformity correction, and intelligent anti-shake.
- Automatic Exposure Compensation: Adjusts automatically to shooting environment for realistic scene restoration in low or strong light.
- 360° Rotatable Camera: Allows shooting from any angle.
- Fleet Communications: Real-time intercom system for up to 6 riders with a maximum intercom distance of 1000 meters.
- Multi-Device Connectivity: Connects to up to three Bluetooth devices simultaneously (e.g., smartphone, navigation, other Bluetooth headsets).
- FM Radio: Supports 76-108MHz frequency for clear radio channels while riding.
- Durable Design: IP67 waterproof, dustproof, sun-proof, cold-resistant, and frost-resistant. Suitable for various outdoor activities.
- Intelligent Noise Reduction: Professional CVC technology effectively eliminates ambient noise.
- Long-Lasting Battery: Low-power Bluetooth chip provides up to 32 hours talk time, 4 hours recording time, 32 hours Bluetooth intercom, and 500 hours standby time. Charging time is approximately 2.5 hours.
- Loop Recording & Crash Latch: Supports loop recording with automatic overwriting of the earliest video when memory is full. Videos recorded during a collision are automatically locked and saved, preventing overwriting. Manual locking is also available.
- Memory Card Support: Supports 16GB/32GB/64GB/128GB memory cards (not included).
- WiFi Interconnection: Connect to the M3S's own WiFi to watch videos on your mobile phone without using mobile data, and download them for storage.
- HiFi Sound Quality: Delivers high-pitched, full mid-range, and strong bass sounds for a 3D audio experience.
- User-Friendly Controls: Oversized rotary knob for multiple operations.
- Universal Helmet Compatibility: Applicable to full face, half face, flip-up, off-road, modular, motocross, and universal helmet types.

Image: Visual representation of the M3S's multi-functional capabilities.

Image: Diagram illustrating the advanced Sony chip and its features for enhanced video quality.

Image: Detailed view of the 6G+IR optical lens and its benefits for image clarity.

Image: Comparison of video quality with and without automatic exposure compensation in different lighting.

Image: Illustration of the 120° wide-angle lens and its reduced image distortion.

Image: Diagram showing the 360° rotatable camera body for flexible shooting angles.

Image: Visualizing the 6-person intercom system and its 1000-meter range.

Image: M3S unit in a snowy environment, demonstrating its IP67 waterproof and weather-resistant capabilities.

Image: Exploded view of a speaker component, illustrating the HiFi sound quality.

Image: Close-up of the oversized rotary knob, emphasizing ease of use.

Image: Waveform comparison showing noise reduction effectiveness before and after processing.

Image: Icons representing battery performance for talk, record, intercom, standby, and charging times.

Image: Diagram showing the M3S connecting to various Bluetooth devices.

Image: Rider listening to FM radio with frequency range indicated.

Image: View through the 2K ultra-clear lens, emphasizing realistic colors.

Image: Graphic illustrating the loop recording process and automatic overwriting.

Image: Icon representing the crash video latch function.

Image: Features related to memory, WiFi, and computer connectivity.

Image: Examples of different helmet types compatible with the M3S.
3. Package Contents
Please check the package carefully to ensure all items are present:
- Maxto M3S Unit
- Box
- Iron Back Clip
- Data Cable
- Speaker Velcro
- Rotating Base
- Soft Glue
- Double-Sided Tape
- Headphones & Microphone
- User Manual
Please Note: Old and new clips/bases are shipped randomly and cannot be specified.

Image: All components included in the Maxto M3S package.

Image: Visual difference between old and new helmet clips/bases.
4. Installation
Follow these steps to install the Maxto M3S on your helmet:
- Choose Mounting Location: Select a suitable flat surface on the side of your helmet for the main unit.
- Attach Mounting Clip/Base:
- Iron Back Clip: Slide the iron back clip between the helmet shell and the inner padding. Ensure it is securely fastened.
- Rotating Base (Adhesive): Clean the chosen area on the helmet surface thoroughly. Peel off the protective film from the double-sided tape on the rotating base and firmly press it onto the helmet. Hold for a few seconds to ensure good adhesion.
- Mount the M3S Unit: Slide the Maxto M3S unit onto the attached clip or base until it clicks into place.
- Install Speakers: Place the speaker Velcro inside the helmet, aligning it with your ears. Attach the speakers to the Velcro. Ensure they are positioned comfortably and do not obstruct your hearing.
- Install Microphone: Attach the microphone to the inside of the helmet, near your mouth. Use the soft glue or double-sided tape if necessary to secure it. Ensure the microphone is positioned to pick up your voice clearly without being too close to your mouth, which can cause distortion.
- Connect Headphones & Microphone: Plug the headphones and microphone cable into the corresponding port on the Maxto M3S unit.
- Insert Memory Card (Optional): Open the memory card slot cover on the M3S unit and insert a compatible TF card (up to 128GB) in the direction shown in the figure (refer to image `S1c8f5532344d472bb725a99a77045acfZ.jpg`). Close the cover securely.
5. Operation
5.1 Power On/Off
- Power On: Press and hold the Power button (usually the main rotary knob or a dedicated button) for approximately 3 seconds until the indicator light turns on and you hear a power-on prompt.
- Power Off: Press and hold the Power button for approximately 3 seconds until the indicator light turns off and you hear a power-off prompt.
5.2 Bluetooth Pairing (with Phone/GPS)
- Ensure the M3S is powered off.
- Press and hold the Power button for about 5-7 seconds until the indicator light flashes rapidly (e.g., red and blue alternately), indicating pairing mode.
- On your smartphone or GPS device, enable Bluetooth and search for available devices.
- Select "Maxto M3S" from the list. If prompted, enter "0000" as the PIN.
- Once paired, the indicator light will change to a slow blue flash, and you will hear a connection confirmation.
5.3 Intercom Function (with other M3S units)
The M3S supports real-time communication for up to 6 riders over a distance of up to 1000 meters.
- Ensure both M3S units are powered on and not connected to other Bluetooth devices.
- Initiate pairing mode on both units (refer to your specific manual for intercom pairing button combinations, typically a dedicated intercom button or a specific sequence of main button presses).
- Once paired, the units will connect automatically for intercom communication.
- To add more units, repeat the pairing process with each new unit, ensuring all units are in pairing mode simultaneously for group intercom setup.
5.4 Video Recording
- Start Recording: Press the dedicated Video Record button (often marked with a camera icon) once. The indicator light will change to confirm recording has started.
- Stop Recording: Press the Video Record button again.
- Loop Recording: The M3S automatically records in segments. When the memory card is full, the oldest video files will be overwritten by new recordings.
- Crash Video Latch: In the event of a collision, the M3S will automatically lock and save the current video segment, preventing it from being overwritten. You can also manually lock a video by pressing a specific button (refer to your manual for exact button).
- Viewing Videos: Connect to the M3S's WiFi via your mobile phone app or connect the M3S to a computer using the data cable to view and download recorded videos.
5.5 Photo Taking
- Take Photo: Press the dedicated Photo button (often marked with a photo camera icon) once to capture an image.
5.6 FM Radio
- Turn On/Off FM: Press the FM button (or a specific combination) to activate or deactivate the FM radio.
- Tune Stations: Use the rotary knob or designated buttons to scan for and select FM radio stations within the 76-108MHz frequency range.
5.7 WiFi Connection
The M3S has its own WiFi network for direct connection to your smartphone.
- Enable WiFi on the M3S (refer to your manual for the specific button/sequence).
- On your smartphone, go to WiFi settings and connect to the M3S's WiFi network (e.g., "Maxto M3S_XXXX").
- Open the dedicated Maxto M3S mobile application to view live footage, playback recorded videos, and download files to your phone.
5.8 Oversized Rotary Knob
The oversized rotary knob is designed for easy operation while riding. It typically controls volume, track skipping, FM tuning, and menu navigation. Refer to your specific manual for detailed functions assigned to short press, long press, and rotation.
6. Maintenance
- Cleaning: Use a soft, damp cloth to clean the exterior of the M3S unit. Do not use harsh chemicals or abrasive cleaners. Ensure all ports are dry before charging or connecting cables.
- Lens Care: Gently clean the camera lens with a microfiber cloth to avoid scratches.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods.
- Firmware Updates: Check the official Maxto website or app periodically for firmware updates to ensure optimal performance and access to new features.
7. Troubleshooting
- Device not powering on: Ensure the battery is charged. Connect to a power source and try again.
- Cannot pair with phone/intercom: Ensure the M3S is in pairing mode (rapid flashing indicator). Make sure other Bluetooth devices are disconnected. Try restarting both the M3S and your phone/intercom unit.
- No sound from speakers: Check if the speakers are properly connected to the M3S unit. Ensure volume is not muted or too low.
- Video recording issues: Ensure a memory card is inserted and has sufficient free space. Check if the memory card is properly formatted (FAT32 recommended).
- Poor video quality: Ensure the lens is clean. Check lighting conditions; the M3S has automatic exposure compensation, but extreme conditions can still affect quality.
- WiFi connection problems: Ensure the M3S's WiFi is enabled. Try restarting the M3S and your phone's WiFi.
- Intercom distance issues: Ensure there are no major obstructions between units. The 1000m range is under ideal conditions; actual range may vary with terrain and environment.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | Maxto M3S |
| Item Type | Helmet Headset |
| Special Features | FM, Voice Control, Universal Pairing Function, Waterproof, Noise Reduction |
| Applicable Helmet Type | MODULAR, MOTOCROSS, Open face, Full Face, Flip Up Helmet, Universal |
| Connection Mode | Bluetooth |
| Maximum Intercom Distance | 500-1000m |
| Maximum Number of Speakers | 6 |
| Power Supply Mode | Built-in Battery |
| Battery Included | Yes |
| Support Intercom | Yes |
| Lens | Sony HD wide angle lens |
| Video Resolution | 1440P |
| Wide-angle Lens | 120° |
| Intelligent Anti-shake | Yes |
| Loop Video Recording | Yes |
| Capturing (Photo) | Yes |
| WiFi Interconnection | Yes |
| Bluetooth Standby Time | Up to 500 hours |
| Bluetooth Time (Intercom/Music) | Up to 32 hours |
| Recording Time | Up to 4 hours |
| Charging Time | About 2.5 hours |
| Item Weight | 54g |
| Item Height | 5.5cm |
| Item Width | 3cm |
| Item Length | 10cm |
| External Testing Certification | CCC |
| Certification | CE |
| Origin | Mainland China |
9. User Tips
- Charging While Recording: The Maxto M3S can be charged while simultaneously recording video, allowing for extended recording sessions on longer rides.
- Memory Card Management: Regularly back up important video files from your memory card to prevent accidental overwriting due to loop recording.
- App Connectivity: Utilize the dedicated mobile app for convenient viewing and downloading of recorded footage directly to your smartphone via the M3S's built-in WiFi.
10. Warranty & Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the retailer/manufacturer directly. Keep your proof of purchase for warranty claims.





