Features 1.Professional Design: TPA3116D2 HIFI chip solution with stereo dual channel output ensures continuous serial high power operation with THD 0.1%. Wide voltage input DC for 12?24V. 2.Parameters: TDA3116D2 digital amplifier board, Bluetooth module is QCC3003, transmission distance is up to 10 meters (no interference blocking), output power is 120W x 2. 3.Widely Used: High sensitivity input, can be directly connected to computer sound card, decoder, DVD, HD player, can also upgrade most AV amplifiers, can be used with front panel power supply, no noise, easy to use. 4.Multiple Safety Protection: The amplifier board has overheating protection, reverse connection protection, disconnection protection, over?voltage and under?voltage protection. 5.High Performance: Suitable for home audiovisual environment, car speaker modification, high power, superior sound quality, small size, high efficiency, energy saving. specificationItem Type: TDA3116D2 Digital Power Amplifier Board_x000D_ Material: PCB_x000D_ Size: Approx. 116x80x20mm / 4.57x3.15x0.79in _x000D_ Chip Type: TDA3116D2_x000D_ Bluetooth Module: QCC3003_x000D_ Transmission Distance: Maximum 10m/32.8ft (No Interference Blocking)_x000D_ Supply Voltage: DC12-24V_x000D_ Supply Current: >3A_x000D_ Output Power: 120W x 2 PackageList1 x_x000D_ _x000D_ TDA3116D2DigitalPowerAmplifierBoard NoteManual measurement please allow some error.