Features: ✨Mini HIFI digital bluetooth audio power amplifier. ✨Aluminum alloy body, durable, the body is made of aluminum alloy once, the anode surface treatment, the overall atmospheres, thick, feel is also very good. ✨Suitable for SD Card, U disk, AUX input, MP3 format play, support bluetooth wireless connection. ✨Supports FM stereo radio. ✨With treble, bass, and volume control, very easy to use. ✨Low distortion supplies a clearer, stronger and more powerful sound. ✨Two main channel output. ✨With Remote control function. ✨DC power in, suitable for your car. Specifications： Amplifier type: hifi power amplifierMaterial: aluminum alloyColor: BlackRMS power: 40W+40WMax power: 400W+400WRated voltage: 12V 3ASNR: 90dBResolution: 47KDistortion rate: 0.1Impedance: 4-16 ΩRated frequency: 20-20KHzInterface type: clipReceiving mode: audio inputSize: 155x85x45mm/6.1inx3.3inx1.7inWeight: 0.35 (kg) Package Included: 1 x Power Amplifier ( Not Included Power Adapter )1 x Remote Control1 x Antenna Notes: The power adapter is not included, which needs to be purchased separately. Please allow 1-3cm difference due to manual measurement. Due to light and screen difference, the item's color may be slightly different from the pictures.