1. Introduction
Thank you for choosing the Xiaomi Bluetooth Speaker ASM02A. This portable speaker is designed to deliver high-quality audio with robust features for both indoor and outdoor use. Please read this manual carefully before using the product to ensure proper operation and to maximize its lifespan.
What's in the Box:
- Xiaomi Bluetooth Speaker ASM02A x1
- Lanyard x1
- USB-C to USB-C adaptor cable x1
- User manual x1

2. Safety Information
- Do not expose the speaker to extreme temperatures or direct sunlight for prolonged periods.
- Avoid dropping or subjecting the speaker to strong impacts.
- Keep the speaker away from medical devices.
- Use only the provided charging cable or a certified USB-C cable for charging.
- Do not attempt to disassemble, repair, or modify the speaker yourself.
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
3. Key Features
- Superior Audio: 5-unit acoustic configuration with dual high-frequency components, a runway-style mid-low frequency unit, and two passive radiators for 360° omnidirectional sound. Delivers up to 93dB volume with 40W total output.
- Durable Design: IP67 dust and water resistance, woven mesh body, and soft rubber base for outdoor use.
- Extended Battery Life: Built-in 4800mAh battery provides up to 17 hours of playback on a single charge, with 22.5W PD fast charging.
- Advanced Connectivity: Bluetooth 5.3 for fast and stable transmission, LHDC 5.0 codec support for high-fidelity audio, and NFC for seamless pairing.
- Smart Integration: Compatible with Xiaomi HyperOS Connect for enhanced connectivity experiences.
- Multi-Speaker Playback: Combine two speakers for stereo sound or connect up to eight Xiaomi Bluetooth Speakers (including Xiaomi Bluetooth Speaker Mini) for group playback.
- Customizable Experience: Colorful RGB ambient light strip with 12 LED beads and 4 built-in lighting effects, customizable via the Mi Home/Xiaomi Home app. Adjust sound effects and EQ settings through the app.
- Professional Tuning: HARMAN AudioEFX professional audio software tuning for clearer and more balanced sound.






4. Setup
4.1 Charging the Speaker
Before first use, fully charge the speaker. Connect the provided USB-C to USB-C adaptor cable to the Type-C charging port on the speaker and to a compatible power adapter (5V 3A or 9V 2.5A recommended). The indicator light will show charging status.
4.2 Power On/Off
- Power ON/OFF: Press the power button once.
- Check Power Level: Press the power button twice.
- Force Restart: Press and hold the power button for 10 seconds.
4.3 Bluetooth Pairing
To connect your speaker to a device via Bluetooth:
- Ensure the speaker is powered on.
- Press the Bluetooth pairing button once to enter pairing mode (blue indicator light will flash).
- On your device, enable Bluetooth and select "Xiaomi Bluetooth Speaker ASM02A" from the list of available devices.
- Once connected, the blue indicator light will become solid.
4.4 NFC Connection
For seamless and quick pairing with NFC-enabled smartphones:
- Ensure NFC is enabled on your smartphone.
- Tap the NFC area of the speaker with your smartphone.
- Confirm the Bluetooth connection prompt on your smartphone.


5. Operation
5.1 Controls

- Power Button:
- Press: Turn power on/off
- Press twice: Check power level
- Press and hold for 10 seconds: Force restart
- Volume Up (+):
- Press: Increase volume
- Press and hold: Continuously increase volume
- Press together with Volume Down: Press and hold simultaneously for 10 seconds to restore factory settings.
- Play/Pause Button:
- Press: Play/Pause
- Press twice: Next track
- Press three times: Previous track
- Volume Down (-):
- Press: Decrease volume
- Press and hold: Continuously decrease volume
- Bluetooth Pairing Button:
- Press: Turn Bluetooth pairing on/off
- Press twice: Turn combo pairing on/off
- Exit combo mode
- Press and hold for 2 seconds: Disconnect the Bluetooth connection
Note: "Stereo playback/group playback" refers to a combination of two or up to eight devices.
5.2 Sound Modes and Equalizer
The speaker supports various sound modes including Stereo Sound Mode, Extra Bass Mode, and Standard Mode. You can switch between these preset audio styles and manually adjust the frequency response curve to enhance or reduce specific frequencies using the Mi Home/Xiaomi Home app to create a unique sound profile.

5.3 RGB Ambient Lighting
The speaker features a colorful RGB ambient light strip with 12 LED beads. You can switch between 4 built-in lighting effects or customize colors through the Mi Home/Xiaomi Home app to set the perfect mood.

5.4 Multi-Speaker Playback
For an enhanced audio experience, you can connect multiple Xiaomi Bluetooth Speakers:
- Stereo Pairing: Combine two Xiaomi Bluetooth Speakers to create a stereo effect for immersive sound.
- Group Playback: Connect up to 8 Xiaomi Bluetooth Speakers (including Xiaomi Bluetooth Speaker Mini) simultaneously for a music-listening experience that fills any space.

6. Maintenance
6.1 Cleaning
Wipe the speaker with a soft, dry, lint-free cloth. Do not use liquid cleaners, aerosols, or solvents. Avoid getting moisture into any openings.
6.2 Storage
When not in use for extended periods, store the speaker in a cool, dry place away from direct sunlight and extreme temperatures. Ensure the battery is partially charged (around 50%) before storing to prolong battery life.

7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker using the provided USB-C cable. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; device Bluetooth off; too far from device. | Ensure speaker is in pairing mode (flashing blue light). Turn device Bluetooth off/on. Move speaker closer to device (within 10-20m). |
| Poor sound quality or no sound. | Volume too low; incorrect sound mode; interference. | Increase volume on speaker and device. Check sound mode settings in Mi Home app. Move away from other electronic devices. |
| NFC connection fails. | NFC not enabled on phone; incorrect tapping area. | Ensure NFC is enabled on your smartphone. Tap the NFC area of the speaker correctly. |
| Speaker not responding. | Temporary software glitch. | Perform a force restart by pressing and holding the power button for 10 seconds. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | Xiaomi Bluetooth Speaker ASM02A |
| Dimensions (L x W x H) | 20.2cm x 7.3cm x 7.3cm (7.95 x 2.87 x 2.87 inches) |
| Weight | 660g (1.46 lbs) |
| Acoustic Unit | High-frequency speaker x2, Mid-low frequency speaker x1, Passive radiator x2 |
| Rated Power | Tweeter 10W x2, Woofer 20W (Total 40W) |
| Maximum Volume | 93dB |
| Microphone | 1 (for Bluetooth calls) |
| Bluetooth Version | 5.3 |
| Audio Codecs | LDAC, SBC, AAC, LHDC 5.0 |
| NFC Support | Yes |
| Ports | Type-C charging port |
| Battery Capacity | 4800mAh (typical) |
| Battery Life | Up to 17 hours |
| Fast Charging | 22.5W PD |
| Input Parameters | USB Type-C: 5V 3A, 9V 2.5A |
| Waterproof Rating | IP67 |
| Sound Modes | Stereo Sound Mode, Extra Bass Mode, Standard Mode, Other |
| Frequency Range | 45Hz-20KHz |
| Maximum Wireless Range | 10m-20m |
| Simultaneous Connections | 2 (for stereo), up to 8 (for group playback) |
| Material | Plastic (Cabinet, Subwoofer, Woofer/Widerange, Mid-range, Tweeter) |
| Control Type | Playback, Volume control, EQ |
| App Support | Mi Home/Xiaomi Home app |
9. User Tips
- For optimal sound, ensure the speaker is placed on a stable surface and not obstructed.
- Utilize the Mi Home/Xiaomi Home app to customize lighting and sound profiles for different moods and environments.
- When using outdoors, take advantage of the IP67 rating, but avoid full submersion.
- For a more immersive experience, pair two speakers for stereo sound or up to eight for group playback.
- If you experience any connectivity issues, try restarting both the speaker and your connected device.
Video showcasing the features and usage of the Xiaomi Bluetooth Speaker ASM02A.
10. Warranty and Support
For detailed warranty information and customer support, please refer to the official Xiaomi website or contact your local authorized dealer. Keep your purchase receipt as proof of purchase for warranty claims.





