ITEM NAME:CSRA64215 Bluetooth 4.2 Wireless Audio Receiver Board APT-X Speaker Bluetoo N4T7 CSRA64215 Bluetooth 4.2 Wireless Audio Receiver Board APT-X Speaker Bluetoo N4T7 Using Bluetooth chip CSR's CSRA64215 version 4.2,Support APT-X lossless audio transmission, the transmission speed is faster, better sound quality. wide voltage Bluetooth receiver module DC / AC 10V-30V, AC-DC power supply can .make your DIY no pressure; Bluetooth module output using NE5532 (American TI brand) pre-operational amplifier, op amp socket for easy replacement using different op amp, the output signal amplitude, promote common amplifier board without pressure with automatic audio signal switching function (using relay signal switching advantages can effectively prevent crosstalk, even without the power to the Bluetooth board, the original signal aux can remain through state), you can ensure that the original amplifier
