This kit is designed for professionals and DIY enthusiasts alike. It includes a volume knob, a moisture-resistant LED, a 2.4GHz antenna and a TSA2210U amplifier board and Bluetooth receiver. Users can adjust the volume of the Bluetooth audio either via their smartphone, or using the supplied knob. The kit can be powered by a 12VDC power supply or a 12V battery. The LED can indicate ON/OFF status and battery voltage. The kit can be installed in a box to easily create your own audio amplifier.

The TSA2210U Class D amplifier board is based on a TPA3110D2 amplifier chip to develop 2x8W power at 8Ω. It can be powered by any DC 8-16V supply and will be able to drive any 4Ω or 8Ω passive loudspeaker. The volume control circuit is also integrated on this board. The Bluetooth 4.0 receiver uses a CSR8635 chip.