Introduction
Thank you for choosing the Remax RB-M10 Portable Bluetooth Speaker. This speaker is designed for outdoor use, offering robust sound and versatile connectivity options for activities such as biking, cycling, and other outdoor sports. Please read this manual carefully to ensure proper use and maintenance of your device.

Image: The Remax RB-M10 Portable Bluetooth Speaker, a cylindrical black speaker with yellow accents, designed for outdoor use.
Package Contents
Please check the package for the following items:
- 1 x REMAX Outdoor 5Wx2 Wireless Bluetooth Speaker
- 1 x AUX Cable
- 1 x Micro USB Charging Cable
Product Features
- Built-in 5W x 2 speakers for powerful audio output.
- Bluetooth Version 4.1 for stable wireless connectivity up to 10 meters.
- Support for TF (Micro SD) card and AUX input for versatile playback options.
- Integrated DSP chip for enhanced low-frequency sound.
- One-button call function with built-in microphone for hands-free calls.
- Durable silica gel keys for control.
- Designed for outdoor use with a buckle for easy carrying.

Image: Close-up of the Remax RB-M10 speaker's control panel, showing the power button, volume controls, and Bluetooth indicator, made of red silica gel.
Setup
Charging the Speaker
Before first use, fully charge the speaker. Connect the supplied Micro USB cable to the charging port on the speaker and the other end to a DC5V-500mA power source (e.g., a USB wall adapter or computer USB port). The charging indicator light will show the charging status.
Power On/Off
- To power on: Press and hold the power button (⏻) until you hear an audible prompt.
- To power off: Press and hold the power button (⏻) again until the speaker turns off.
Operating Instructions
Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth pairing mode (indicated by a flashing LED).
- On your mobile device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "RB-M10" from the list of found devices.
- Once paired, the speaker will indicate a successful connection, and the LED will stop flashing.
The speaker will automatically attempt to reconnect to the last paired device when powered on.
TF Card Playback
Insert a TF (Micro SD) card with audio files into the designated slot on the speaker. The speaker will automatically switch to TF card mode and begin playing music.

Image: A close-up view of the Remax RB-M10 speaker's TF card slot, with a Micro SD card partially inserted, demonstrating its support for external memory.
AUX Input Playback
Connect one end of the supplied 3.5mm AUX cable to the AUX port on the speaker and the other end to the audio output jack of your external device (e.g., MP3 player, laptop). The speaker will automatically switch to AUX mode.

Image: The Remax RB-M10 speaker connected to a smartphone via a yellow AUX audio cable, illustrating its auxiliary input capability.
Call Function
- When a call comes in during music playback, the music will pause.
- To answer a call: Briefly press the power button (⏻).
- To end a call: Briefly press the power button (⏻) again.
- To reject a call: Press and hold the power button (⏻) for 2 seconds.
Volume Control
- To increase volume: Press the "+" button.
- To decrease volume: Press the "-" button.
Maintenance
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid exposing the speaker to extreme temperatures, direct sunlight, or high humidity.
- Store the speaker in a cool, dry place when not in use.
- To preserve battery life, charge the speaker regularly, even if not used frequently.

Image: A close-up of the Remax RB-M10 speaker's integrated carabiner-style buckle, demonstrating its portability and ease of attachment to bags or gear.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker fully. |
| Cannot connect via Bluetooth. | Speaker is not in pairing mode or too far from device. | Ensure speaker is in pairing mode. Move device closer. Forget device on phone and re-pair. |
| No sound from speaker. | Volume too low; incorrect input mode; faulty cable. | Increase volume. Check if correct input (Bluetooth/AUX/TF) is selected. Test with a different cable if using AUX. |
| Poor sound quality. | Low battery; interference; source audio quality. | Charge speaker. Move away from other electronic devices. Try different audio source. |
Specifications
| Feature | Detail |
|---|---|
| Bluetooth Version | V4.1 |
| Operating Distance | Up to 10m (free space) |
| Frequency Response | 80Hz-18KHz |
| Rated Power | 5W x 2 |
| Charging Voltage | DC5V-500mA |
| Battery | Internal 3.7V/4000mAh Lithium Battery |
| Play Time (Medium Volume) | 8-10 hours |
| Play Time (High Volume) | 4-5 hours |
| Dimensions | 66mm x 66mm x 190mm (2.6 x 2.6 x 7.5 inches approx.) |
| Weight | 463g (1.02 lbs approx.) |
| Connectivity Technology | Bluetooth, Auxiliary, USB, Micro SD |
| Audio Output Mode | Stereo |
Warranty and Support
For warranty information and technical support, please refer to the official Remax website or contact your local dealer. Keep your purchase receipt as proof of purchase for any warranty claims.
