Product Overview
The Boytone BT-66B is a 100-watt wireless Bluetooth premium HiFi home stereo theater system designed to deliver powerful and clear audio. It features a 6.5-inch subwoofer and four 3-inch mid-range/tweeter speakers, providing a wide audio spectrum. This system supports various audio sources including Bluetooth, USB, SD card, and auxiliary input, and also includes an FM radio tuner.

Image: The Boytone BT-66B home stereo system, featuring a sleek mahogany finish with a dark front panel and a top-mounted control interface with a digital display.
Setup Instructions
1. Unpacking and Placement
Carefully remove all components from the packaging. The box should contain the main unit, a remote control, an auxiliary cable, and this instruction manual.
- Place the main unit on a stable, flat surface.
- Ensure adequate ventilation around the unit to prevent overheating.
- For optimal bass performance, consider the placement of the woofer cabinet.
2. Power Connection
Connect the power cable to the AC 110V power outlet. The unit is UL listed for safety.
3. Audio Connections
- Auxiliary Input: Use the included 3.5mm aux cable to connect non-Bluetooth devices such as MP3 players, CD/DVD players, or computers to the system. Insert one end into the device's audio output and the other into the AUX input on the BT-66B.
- USB/SD Card: For direct playback of MP3 files, insert a USB drive or SD card into the respective slots on the unit.
Operating Instructions
1. Power On/Off
Press the power button on the unit or the remote control to turn the system on or off.
2. Bluetooth Pairing
- Ensure the BT-66B is powered on and in Bluetooth mode. The display will indicate "BT" or a similar Bluetooth indicator.
- On your Bluetooth-enabled device (smartphone, tablet, laptop), go to the Bluetooth settings.
- Search for available devices. You should see "BT-66B" or "Boytone BT-66B" in the list.
- Select "BT-66B" to pair. Once paired, the unit will confirm the connection, and you can begin streaming wireless music.
- The outstanding connection range is up to 33 feet (approximately 10 meters).
3. USB/SD Card Playback
Insert a USB flash drive or an SD card containing MP3 audio files into the corresponding slot. The built-in MP3 player will automatically detect and begin playing the music. Use the unit's controls or the remote to navigate tracks and adjust playback.
4. FM Radio Operation
Switch the unit to FM radio mode. Use the tuning controls on the unit or remote to scan for available radio stations. The digital display will show the frequency.
5. Volume Control
Adjust the master volume using the dedicated volume controls located on the subwoofer unit or via the remote control.
6. Remote Control Usage
The included wireless remote control provides full functionality for power, mode selection, volume adjustment, track navigation, and FM tuning. Ensure the remote has working batteries and is pointed towards the main unit's sensor.
Maintenance
Cleaning
To maintain the appearance and performance of your BT-66B system, follow these cleaning guidelines:
- Always unplug the unit from the power outlet before cleaning.
- Use a soft, dry cloth to wipe down the exterior surfaces.
- Do not use liquid cleaners, abrasive cleaners, or chemical sprays, as these may damage the finish or internal components.
- Keep the speaker grilles free from dust and debris.
Storage
If storing the unit for an extended period, ensure it is clean, dry, and stored in a cool, well-ventilated area away from direct sunlight and extreme temperatures.
Troubleshooting
If you encounter issues with your Boytone BT-66B system, please refer to the following common troubleshooting steps:
- No Power:
- Ensure the power cable is securely plugged into both the unit and a working AC outlet.
- Check if the power outlet is functional by plugging in another device.
- No Sound:
- Verify the volume is turned up on both the BT-66B and your connected audio source.
- Ensure the correct input mode (Bluetooth, AUX, USB, SD, FM) is selected.
- If using AUX, check the cable connection at both ends.
- If using Bluetooth, ensure the device is properly paired and connected.
- Bluetooth Connection Issues:
- Make sure the BT-66B is in Bluetooth pairing mode.
- Ensure your device's Bluetooth is enabled and within the 33-foot range.
- Try unpairing and re-pairing the device.
- Clear previous Bluetooth connections on your device if you have too many.
- USB/SD Playback Not Working:
- Ensure the USB drive or SD card contains compatible MP3 audio files.
- Check if the drive/card is inserted correctly.
- Try a different USB drive or SD card to rule out media issues.
- Remote Control Not Responding:
- Check and replace the batteries in the remote control.
- Ensure there are no obstructions between the remote and the unit's sensor.
- Point the remote directly at the unit.
Specifications
| Feature | Detail |
|---|---|
| Model Name | BT-66B |
| Speaker Type | Bookshelf, Surround Sound System |
| Output Power | 100 Watts |
| Subwoofer Diameter | 6.5 inches |
| Midrange/Tweeter | 3 inches x 4 |
| Frequency Range | 40Hz - 20kHz |
| Connectivity Technology | Bluetooth, USB, SD, 3.5mm AUX |
| Wireless Communication | Bluetooth (up to 33 feet range) |
| Power Source | AC 110V (UL Listed) |
| Control Method | Remote Control |
| Material | Wood (Mahogany color) |
| Product Dimensions | 18 x 8 x 9 inches |
| Item Weight | 12 pounds |
| Included Components | Main unit, remote, aux cable, instruction manual |
Warranty and Support
Warranty Information
The Boytone BT-66B comes with a 1-year warranty provided by Boytone. Please retain your proof of purchase for warranty claims.
Customer Support
For further assistance, technical support, or warranty inquiries, please visit the official Boytone manufacturer website. You can find more information and contact details there.





