1、CLASS A: Bluetooth sound decoder board is powered by dynamic Class A emitter follower, which responds to dynamic changes in current level during decoder operation. 2、DISTORTION REDUCTION: Bluetooth decoder module can provide up to 4A current to maximize the dynamic effect of sound signal and minimize distortion. 3、DECODER CHIP: Bluetooth decoder chip can support 32Bit 384kHz, by optimizing the surrounding circuit material to get good sound. 4、CONNECTION: Default Bluetooth priority, wired input automatically disconnected when there is a Bluetooth connection, wired input automatically access when there is no Bluetooth connection, Bluetooth and wired automatically switch. 5、POWER INFORMATION: Power supply does not need to distinguish between positive and negative, DC power is 8‑32V 1A, AC power is AC 6‑24V 1A. Item Type: Bluetooth Sound Decoder Board Material: PCB Bluetooth: 5.1 1 x Decoding Board 1 x Receiver Stick 1 x Antenna 2 x Gasket 1 x Nut 3 x Connection Cable