Mini HIFI digital Bluetooth audio power amplifier with built-in LCD display and backlight function. Supports SD card, USB drive, and MP3 format playback, with Bluetooth wireless connectivity. Includes FM stereo radio reception. Four-channel output supports connection to two pairs of speakers up to 8 inches. Features a newly designed front panel with color LED lighting for enhanced visual appeal. Equipped with treble, bass, and volume controls for easy operation. Low distortion delivers clearer, stronger, and more powerful sound performance. Dual main channel output with remote control functionality. DC power input suitable for car use. Specifications: 1. Rated voltage: DC12V 2. Rated power: 60Wx4 3. Maximum power: 180Wx4 4. Frequency response: 20-20KHz 5. Distortion rate: 0.4% 6. Impedance: 4-16 ohm 7. Signal-to-noise ratio (SNR): 80dB 8. Effective frequency range: 20Hz-20KHz 9. Input sensitivity: 150-300mV 10. Model Number: Home Theater Amplifiers Color: Black Material: Metal Package Contents: 1 x Audio Amplifier 1 x English Manual 1 x Remote Control (random color, no color choice available) Note: Only the items listed above are included. Other accessories or products are not included. Lighting and monitor differences may cause slight variations in color between the product image and the actual item. Measurement tolerance: +/- 1-3cm.