Product Diagram

BTC21
Bluetooth Transmitter and Receiver
Product Diagram
1. Multi-function Button
2. LED Indicator
3. 3.5mm Audio Port
4. Optical Audio Port
5. Coaxial Audio Port
6. Micro USB Charging Port
LED Indicator Status
Flashing Red and Blue Pairing mode
Solid Blue LED Successfully paired
How to Use
Attach the antenna
Screw the package included antenna on to the rear of the BTC21R antenna terminal by firmly
turning it to the right. Set up the antenna and set it to the desired position.
Note: Different antenna positions can affect wireless working range. Check which position
gives you the best result.

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