
Image: EARISE D51 speaker banner highlighting its compact size and powerful sound.
Introduction
Thank you for purchasing the EARISE D51 Portable Wireless Bluetooth Speaker. This manual provides essential information for setting up, operating, and maintaining your speaker. Please read it thoroughly before use to ensure optimal performance and longevity of your device.
Package Contents
Verify that all items are present in the package:
- EARISE D51 Bluetooth Speaker
- Charging Cable
- User Manual
- (Optional: Microphone, if included with your specific purchase)
Product Overview
Familiarize yourself with the speaker's components and controls.

Image: Top view of the EARISE D51 speaker showing the control panel with numbered buttons.
- Mode/Light Button: Press to switch between input modes (Bluetooth, FM Radio, TF Card, USB, AUX). Long press to change or turn off LED light modes.
- Previous Track/Volume Down Button: Short press for previous track. Long press to decrease volume.
- Play/Pause/TWS Button: Press to play or pause audio. Long press to initiate TWS (True Wireless Stereo) pairing.
- Next Track/Volume Up Button: Short press for next track. Long press to increase volume.

Image: Front view of the EARISE D51 speaker with icons highlighting its features: TF Card slot, TWS Function, Bluetooth 5.0, USB port, FM Radio, and Microphone input.

Image: A hand holding the EARISE D51 speaker, illustrating its portable size and dimensions (5.9 in x 4.3 in x 7 in).
Setup
1. Charging the Speaker
Before first use, fully charge the speaker. Connect the provided charging cable to the speaker's charging port and a compatible USB power adapter (not included). The charging indicator will illuminate during charging and turn off when fully charged.
2. Power On/Off
To power on the speaker, press and hold the Power button (usually integrated with the Mode/Light button or a separate switch). Repeat to power off.
3. Bluetooth Pairing
- Turn on the EARISE D51 speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing LED light.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "D51" from the list of devices.
- Once connected, the speaker will emit an audible confirmation, and the LED light will stop flashing.
Video: This video demonstrates the EARISE D51 Portable Bluetooth Speaker with RGB Lights, showcasing its various light modes and sound. It provides a visual guide to the speaker's appearance and functionality.
4. True Wireless Stereo (TWS) Pairing (Optional)
To achieve a stereo sound experience, you can pair two EARISE D51 speakers together:
- Ensure both D51 speakers are powered on and not connected to any Bluetooth device.
- On one speaker (this will be the primary speaker), long press the Play/Pause/TWS button until you hear a confirmation tone.
- The two speakers will automatically connect to each other. Once connected, you will hear another confirmation tone.
- Now, connect your device to the primary speaker via Bluetooth as described in "Bluetooth Pairing" above. The audio will play in stereo through both speakers.

Image: Two EARISE D51 speakers positioned for wireless stereo pairing, with a smartphone displaying music playback, illustrating the TWS feature.

Image: Two EARISE D51 speakers set up on a desk next to a laptop, demonstrating the True Wireless Stereo (TWS) pairing for an enhanced audio experience.
Operating Instructions
1. Changing Playback Modes
Press the Mode/Light button (1) repeatedly to cycle through available input modes: Bluetooth, FM Radio, TF Card, USB, and AUX.
2. Adjusting Volume and Tracks
- Volume Up: Long press the Next Track/Volume Up button (4).
- Volume Down: Long press the Previous Track/Volume Down button (2).
- Next Track: Short press the Next Track/Volume Up button (4).
- Previous Track: Short press the Previous Track/Volume Down button (2).
- Play/Pause: Short press the Play/Pause/TWS button (3).
3. Using FM Radio
In FM Radio mode, short press the Play/Pause/TWS button (3) to auto-scan and save available radio stations. Use the Previous Track/Volume Down (2) and Next Track/Volume Up (4) buttons to navigate between saved stations.
4. TF Card and USB Playback
Insert a TF card or USB drive with MP3 audio files into the respective slot. The speaker will automatically switch to the corresponding mode and begin playback.
5. AUX Input
Connect an external audio device using a 3.5mm AUX cable (not included) to the AUX port. Switch the speaker to AUX mode using the Mode/Light button (1).
6. LED Light Modes
The EARISE D51 features multiple RGB light modes. Long press the Mode/Light button (1) to cycle through different light patterns or to turn the lights off.

Image: The EARISE D51 speaker emitting a bright purple RGB light, highlighting its visual effects.
Video: This video showcases the EARISE D51 Bluetooth Speaker's various RGB light modes and how they synchronize with music, providing a dynamic visual experience.
Maintenance
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Keep the speaker away from water, moisture, and extreme temperatures.
- Store the speaker in a cool, dry place when not in use.
- Avoid dropping or subjecting the speaker to strong impacts.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Low battery. | Charge the speaker fully. |
| Cannot pair via Bluetooth. | Bluetooth not enabled on device; speaker too far; speaker already connected to another device. | Ensure Bluetooth is on and the speaker is in pairing mode. Move speaker closer to device. Disconnect from other devices. |
| No sound. | Volume too low; incorrect mode selected; device not playing. | Increase volume on both speaker and device. Ensure correct input mode is selected. Check if the audio source is playing. |
| TWS pairing fails. | Speakers already connected to other devices; incorrect pairing procedure. | Ensure both speakers are disconnected from all devices before initiating TWS pairing. Follow TWS pairing steps carefully. |
Specifications
| Model Name: | D51 |
| Brand: | EARISE |
| Speaker Type: | Surround Sound |
| Special Feature: | Portable |
| Connectivity Technology: | Auxiliary, Bluetooth, USB |
| Wireless Communication: | Bluetooth |
| Speaker Size: | 4 Inches |
| Speaker Maximum Output Power: | 5 Watts |
| Power Source: | Battery Powered |
| Audio Output Mode: | Stereo |
| Product Dimensions: | 6 x 4 x 5 inches |
| Item Weight: | 1.3 pounds |
| Included Components: | LED Lights |
| Is Waterproof: | False |
| Control Method: | App |
Safety Information
Please read and follow these safety guidelines:
- Do not expose the speaker to extreme temperatures, direct sunlight, or high humidity.
- Avoid using the speaker near water or in wet conditions, as it is not waterproof.
- Do not disassemble, repair, or modify the speaker yourself. Contact qualified service personnel for any repairs.
- Keep the speaker away from children and pets.
- Use only the provided charging cable or a certified equivalent.
- Dispose of the speaker and its battery responsibly according to local regulations.
Warranty and Support
The EARISE D51 Bluetooth Speaker comes with a limited warranty. Please refer to the warranty card included in your package for specific terms and conditions. For technical support or customer service, please contact EARISE customer support through their official website or the contact information provided with your purchase.
For more information, visit the official EARISE website: www.earise.com





