[TPA3116D2 CHIP]C50HS adopt TPA3116D2(with am interference suppression function) chips, with excellent sound quality. It ensures that even with high power operation for a long time, THD is less than 0.1% [Output Power]50W+50W Output Power, Elevate your listening experience with the C50HS power amplifier board, offering a wide input voltage range of 5-24V [Multiple audio input methods]The multiple input methods (Bluetooth, AUX, USB flash drive, USB sound card) allow for a wide range of devices to be connected to the amplifier board, including smartphones, laptops, tablets, and other audio sources. [Protective Function]Over-voltage Protection, Under-voltage Protection, Over-heat Protection, Short-circuit Protection, This means that the Bluetooth amplifier board is not easily <br><br>Material: plastic colour: Black<br><br>Package Contents: 1 x Bluetooth Audio Amplifier Board 1 x Screwdriver<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.