Mini Bluetooth Power Amplifier, Yeeco Wireless Audio Receiver BT 3.0/4.0/4.1 Hi-Fi Digital Amp 2 Channel 50W+50W with AUX/USB/Bluetooth Input (Amplifier+ Power Supply Adapter, Golden) DC12-24V 3-4A Yeeco 50W+50W DUAL CHANNELbluetooth receiver amplifier,with power supply Our Bluetooth audio transmitter is super compatible to singing, SmartPhone, television tablet PC and etc Bluetooth connecting distance of mini bluetooth amplifier is Up to 10 meter(30 feet) wireless range in open space Dual Channel Wireless Bluetooth Stereo Audio Receiver ;78mm*38mm*70mm(Length*Width*Height), mini size and elegant design(aluminum body with volume knob) Mini Bluetooth 4.0 Digital Amplifier;AUX (3.5mm) Input Connector Jack and Bluetooth 4.0+EDR. Output Power(RMS):50W x 2 to speakers, 105mW x 2 to Headphone