Mini HIFI digital Bluetooth audio power amplifier. Durable construction with an aluminum alloy body and anodized surface treatment for a premium, solid feel. Compatible with SD card, USB drive, AUX input, and MP3 format playback; supports Bluetooth wireless connectivity. Includes FM stereo radio reception. Equipped with treble, bass, and volume controls for easy operation. Low distortion delivers clearer, stronger, and more powerful sound output. Dual main channel output. Remote control function included. DC power input suitable for car use. Amplifier type: HIFI power amplifier Power output: 40W + 40W Maximum power: 400W + 400W Rated voltage: 12V 3A Signal-to-noise ratio: 90dB Resolution: 47K Distortion rate: 0.1% Impedance: 4-16 ohm Frequency response: 20-20kHz Interface type: spring clip terminals Input mode: audio line input Plug type: EU plug (compatible with countries including Indonesia, Germany, France, Italy, etc.) Voltage: AC 220V Color: black Material: plastic Package contents: 1 x Digital power amplifier Note: Other items not included. Lighting effects and display differences may cause slight color variation between images and actual product. Measurement tolerance: 1-3 cm.