Bluetooth Wireless Communication Kit for 2-Way Radios
This is a full-duplex Bluetooth voice communication kit for 2-way radios. The biggest board (TSA5003) is connected to a wired headset. Another board, TSA5004, connects to the 2-way radio. The smallest module is the wireless PTT button.


The TSA5004 module audio interface is a 4-pin 2.54mm pin space XH connector. The MIC pin is the microphone input, and SPK1 and SPK2 are the speakers’ output. The power input range is DC3.3V-6V. You need to connect the headset’s mic and speakers to the TSA5004.
MFB Button:
- Long press 5 seconds turn TSA5004 ON/OFF.
- Double-click into searching mode. It will auto-search Bluetooth Master device.

MFB Button:
- Long press 5 seconds turn TSA5003 ON/OFF.
- Double-click into searching mode. It will search Bluetooth slave devices.

How to use it?
- Connect your headset speaker/microphone to the TSA5003 board. Then, connect TSA5004 to the mobile radio and power all three modules.
- Keep your TSA5003 and TSA5004 within 5 meters.
- Turn on your TSA5004 module (press the MFB button for about 5 seconds). Please make sure no other Bluetooth slave devices are nearby (Bluetooth amplifier, Bluetooth headset, Bluetooth receiver, etc.).
- Turn on your TSA5003 Bluetooth transmitter, press the MFB button for about 5 seconds, and double-click the MFB button. The blue and red LED lights will fast-blink. Now, the transmitter is in pairing mode and will automatically search for the receiver device. Finish pairing and connecting.
- Double-click the MFB button on TSA5004.
- After connecting successfully, the blue LED on TSA5003 will stay on.
- Your voice can now be sent to the radio wirelessly. You can also receive voice from the radio.
Features:
- Bluetooth v5.3
- aptX, aptX-HD, SBC, and AAC
- Bluetooth protocol: A2DP
- Output power: ClassII
- Effective transmission distance: 80-100m
Shipping list:
- 1 x TSA5003 Master module
- 1 x TSA5004 Slave module
- 1 x PTT button module
- 2 x Antenna
- 1 x JST XH Jumper 2 Wire -2.54mm
- 3 x JST XH Jumper 4 Wire -2.54mm
- 1 x JST XH Jumper 5 Wire -2.54mm
- 2 Mirco USB cables
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