Description: -Dual-channel 120W + 120W digital amplifier board audio stereo receiver module; With patch inductance helps to filter noise, picking the signal, stabilizing current and suppressing interference -XH-M548 amplifier board adopts TPA3116D2 digital ampliy chip which are high efficient, Class-D operation and CSR8635 V4.0 bluetooth; With more than 90% power efficience and low consumption -ONE DC 12-24V 2.1 port for powering the amplifier board, TWO output terminals, THREE keys: "PLAY/STOP", "PRE/VOL-" "NEXT/VOL+"; Bluetooth working indicator and FOUR ?3.2mm holes at each conner of the board for installation -Adopt advanced Bluetooth connection that you don't have to connect the AUX wire while you are playing your mobile phone. Turn on your bluetooth on your devices, search "BT Speaker" and connect, about 10m control distance -Array shape heatsink chip let the heat dissipate convectly, TPA3116D2 is belong to digital chip which causes lower heat and the black coating around the heatsink can enhance the heat dissipation get to a greater extent Specification: Specifications: Model: XH-M548 Chip Type: TPA3116D2 Bluetooth module: btm835/csr8635(4.0) Transmission distance:Max 10m Voltage:DC12-24V Current:?3A Output Power:120Wx2 Efficiency ratio:?90% Sound track: Dual track · Bluetooth module Parameters: Specification: Bluetooth V4.0 Modulation Mode: GFSK ?/4 DQPSK,8DPSK Voltage: 3.3-4.2V Suppotr Bluetooth Protocol: HFP V1.6,HSP V1.2,A2DP V1.2,AVRCP V1.4,DI V1.3 Work Current:?30mA Standby Current:?50uA Temperature range:-40? to +80? Wireledd Transmission Distance:10m Transmit Power: Support CLASS1/CLASS2/CLASS3 8dBm Max Sensitivity: -80dBm?0.1%BER Frequency Range: 2.4GHz-2.480GHz External Interface: PIO,SPI,Audio in/out and PCM,USB Audio Support: AAC,MPA,SBC,Stereo Distortion Factor: ?0.1% Module Size: 98*60*15mm/3.86*2.36*0.59inch Package Includes: 1 Piece Digital Amplifier Board
