ITEM NAME:Bluetooth 4.0 TDA7492 Amplifier Board 2* 50W Digital Dual Channel CSR8635 #gib Product Description Description: Features: Power: 2.1 Interface DC 10 ~ 25V power supply. Audio input: various versions of Bluetooth stereo inputs, CSR8635 Bluetooth chip, Bluetooth V4.0, high software compatibility. Output Impedance: 8 ohms Best (ohm impedance speakers can drive 4,6,8,16). Amplifier chip: TDA7492 Output power: 2 * 50W Additional features: with a microphone (available Bluetooth phone call), AUX interfaces (wired audio input). Included: 1 x Bluetooth 4.0 Amplifier Board.Audio input: various versions of Bluetooth stereo inputs, CSR8635 Bluetooth chip, Bluetooth V4.0, high software compatibility. Amplifier chip: TDA7492. Output power: 2 50W. Included: 1 x Bluetooth 4.0 Amplifier Board.