Features: Advanced 2.0CH Bluetooth 5.0 Receiver Amplifier achieves HiFi music quality, the best choice for your home audio entertainment. Fosi Audio BT20A Pro is the upgraded version for BT20A. All-NEW Aluminum Appearance. MAX Power Output: 300 Watt x2, Amplifier Chip: TPA3255. BT20A Pro Adopts Texas Instruments TPA3255 high-performance Class-D power amplifier chip. BT20A Pro can drive up to 2 x 300 W into 4- load. In addition to excellent audio performance, TPA3255 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 m MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations. Professional wireless amp with subwoofer frequency, master volume/bass/treble control. No pop sound, no audible noise during the connection. Have a good time with Hifi music journey. We offer 24-month warranty, and friendly customer service! Highlight: Model:BT20A Pro Poweramplifierchip:TPA3255NE5532 DCInputRange:24-48V TerminatingImpedance:2Ohm-8Ohm MAXPowerOutput:300Wx2(4ohm/32VLoad) THD0.005% FrequencyRange:20Hz-20kHz(±1.2dB) SNR108dB InputSensitivity775mV InputMode:Bluetooth&RCA Bluetoothversion:Bluetooth5.0(50Ftwithoutobstruction) PackageInclude: *BT20A Pro BluetoothAmplifierx1 *UserManualx1