Class D Amplifier 100W Digital Mini Bluetooth Power Amplifier Wood Grain Description: This power amplifier is equipped with AUX/USB/BT 50 3,5 mm inputs, compatible with all home audio devices such as phone, tablet, computer, TV, decoder, CD player, etc. Bluetooth 50 to achieve stable and high transmission speed and greater wireless range, adopts TPA3116 chip, the maximum output power reaches 50W x 2, easily drive most passive stationary/shelf/internal speakers Adopting simple circuit layout, copper components gold plated terminals, the sound is clear and clear, natural or audible even at high output power Super compact with attractive appearance, unique housing processing process looks high-end and with texture With input and volume indicators, the working status is bright and clear, very convenient to use Specification: Type: Digital Power Amplifier Audio Input: Bluetooth / USB / 3,5 mm AUX Bluetooth version: 5.0 Maximum output power: 50 W × 2 Speaker Impedance: 4 Ohm -16 Ohm Operating voltage: DC 9 V-24 V. Power supply specification: 5,5 mm / 2,1-2,5 mm Frequency Response: 20 Hz-20 KHz ( 1 dB) Signal-to-noise ratio: ≥98dB Size: about 40 x 55 x 60 mm / 1,6 x 2,2 x 2,4 inches The package includes: 1x Digital Power Amplifier 1x instructions