Introduction
Thank you for purchasing the BT21 Official Friends Duo Bluetooth Stereo Portable Speaker & Figure Set. This manual provides essential information for the safe and efficient use of your new speaker. Please read it thoroughly before use and retain it for future reference.
Safety Information
- Do not expose the speaker to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping or subjecting the speaker to strong impacts.
- Keep the speaker away from water and other liquids. This product is not waterproof.
- Do not attempt to disassemble, repair, or modify the speaker yourself. Contact qualified service personnel for assistance.
- Use only the provided USB C-type charging cable for charging.
- Keep out of reach of children.
What's in the Box
- 2 x BT21 Portable Speakers (Cooky and another character)
- 2 x BT21 Figures (Cooky and Shooky)
- 1 x USB C-type Charging Cable
Product Overview
The BT21 Portable Speaker features a compact design with intuitive controls. Below is a diagram illustrating the speaker's components and dimensions.

The set also includes a Shooky figure, designed to complement your speaker.

Setup
Charging the Speaker
- Connect the provided USB C-type cable to the charging port on the speaker.
- Plug the other end of the cable into a compatible USB power adapter (not included) or a computer's USB port.
- The charging indicator light will illuminate. A full charge takes approximately 4 hours.
- Once fully charged, the speaker provides up to 13 hours of continuous playback, depending on volume levels.
Operating Instructions
Power On/Off
Press and hold the Power button (usually marked with a circle and vertical line) located on the back of the speaker to turn it on or off.
Bluetooth Pairing
- Ensure the speaker is powered on.
- On your device (smartphone, tablet), enable Bluetooth and search for available devices.
- Select the speaker from the list (refer to the code on the back of the main body attachment label for the speaker's name).
- Once connected, a confirmation sound will play.
Stereo Sound Function (Duo Mode)
To connect two BT21 speakers for stereo sound:
- Deactivate Bluetooth pairing on all devices that were previously connected to either speaker.
- Press the Bluetooth and Duo mode button once on Speaker A.
- Press and hold the Bluetooth and Duo mode button on Speaker B for 5 seconds.
- Once connected, an alarm will sound once on both speakers, and the LED indicators will show one speaker's LED as solid and the other blinking.
- Find and pair Speaker A on your Bluetooth device. The two speakers will now function as a stereo pair.

360-Degree Sound
The speaker is designed to provide clear music appreciation from a 360-degree angle, utilizing both front and rear speakers for an immersive audio experience.

Volume Control
Use the '+' and '-' buttons on the back of the speaker to adjust the volume up or down.
Speakerphone and Voice Commands
When connected to a smartphone, the speaker can be used for hands-free calls and voice assistant commands.


Maintenance
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Store the speaker in a cool, dry place when not in use.
- Avoid prolonged exposure to dust or dirt, which can affect performance.
Troubleshooting
- Speaker not turning on: Ensure the battery is charged. Connect the speaker to a power source using the USB C-type cable.
- Cannot pair via Bluetooth: Make sure the speaker is in pairing mode and within range of your device (up to 20 meters). Deactivate Bluetooth on other devices that might be trying to connect.
- No sound or low volume: Check the volume levels on both the speaker and your connected device. Ensure the speaker is properly paired.
- Stereo sound not working: Follow the Duo Mode pairing instructions carefully, ensuring Bluetooth is deactivated on other devices before initiating the stereo connection.
- Sound distortion: Reduce the volume on both the speaker and your connected device. Ensure the speaker is not placed near sources of interference.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions (Cooky) | 72mm X 73.7mm X 137.59mm (249.5g) |
| Product Dimensions (Shooky Figure) | Approx. 4cm x 4cm |
| Bluetooth Version | 4.2 |
| Bluetooth Coverage | Up to 20 meters (65 feet) |
| Speaker Type | Full range speaker & Passive radiator |
| Volume (1M Distance) | 78.4~78.6db |
| Charging Port | USB C-type 2.0 |
| Charging Time | Approx. 4 hours |
| Playback Time | Up to 13 hours |
| Internal Battery | 1,800mAh |
| Audio Output Mode | Stereo |
| Speaker Maximum Output Power | 5 Watts |
Warranty Information
This product comes with a limited warranty. Please refer to the product packaging or the official BT21 website for detailed warranty terms and conditions. Keep your proof of purchase for warranty claims.
Customer Support
For further assistance, technical support, or inquiries regarding your BT21 speaker, please visit the official BT21 website or contact their customer service department. Contact information can typically be found on the product packaging or the brand's official online presence.