1. ### Product Features 1. It is equipped with Bluetooth 5.0, USB, and 3.5mm AUX audio input interfaces, which are compatible with many common audio devices, such as mobile phones, tablets, computers, TVs, CD players, decoders, pre - amplifiers, etc. 2. The Bluetooth 5.0 wireless input enables relatively fast and stable transmission. The USB input supports plug - and - play without the need for drivers. Complete accessories are provided, allowing users to enjoy its functions after receiving the product. 3. It uses the TPA3116 chip, and the maximum output power is increased to 100W (50W×2), which can drive many household speakers. The sound quality is clear and delicate, and there is little obvious noise even at high - power output. 4. It has a relatively small size and an exquisite appearance. There are five colors (black, silver, gold, blue, red) of aluminum alloy shells for selection. It can not only provide sound but also decorate the home or office. It is suitable for home and desktop audio systems. 2. ### Product Parameters 1. Color: Black 2. Bluetooth version: 5.0 3. Rated power: 50W×2 4. Channels: 2.0 5. Impedance: 4 - 8 ohms 6. Audio input: Bluetooth, USB, 3.5mm AUX 7. Audio output: Banana plug speaker interface 8. Power supply: DC 9V - 24V 9. Dimensions: Length 78mm×Width 70mm×Height 38mm (3.07 inches×2.76 inches×1.50 inches) 10. Net weight: 154 grams/0.34 pounds 11. Package weight: 0.45 kilograms/0.99 pounds 3. ### Package Contents 1. 1 amplifier 2. 1 audio cable