200W Amplifier 2.0 Channel 2 x TPA3116D2 Chips Stereo AMP Karaoke Bluetooth 5.3 Optical and AUX Inputs, for Speakers Remote Control DC 12-24V. High Fidelity Sound – Built-in 2 PCS TEXAS INSTUMENTS TPA3116D2 AMP chips and SA5532A OP-AMP chip, delivering two channel stereo lossless output, up to 1.2 MHZ modulation frequency, Integrated self-protection circuitry, including overvoltage, undervoltage, overtemperature, DC detection, and short-circuit protection Multiple Input & Output Methods: – amplifier supports Bluetooth 5.3, RCA, Optical, Coaxial. Mic input allow for a wide range of devices to be connected to the amplifier board, including smartphones, laptops, tablets, and other audio sources. D Smart Protection Mechanism: This amplifier board equipped with an intelligent control system to prevent issues such as short circuit, over-voltage, under-voltage, overheating, and clipping of the amplifier board. Package Include – 1 x Amplifier, 1 x Adapter, 1 x Remote Control, 1 x RCA Cable, 1 x AUX Cable, 1 x Instruction.