Support microphone and microphone input. Supports FM stereo radio. 5 channel output, can connect 2 pairs of speakers below 10 inches. The newly designed front panel of dazzling color light brings cool feeling. With treble, bass, and volume control, very easy to use. Brand: Power amplifier type: HIFI power amplifier Name:Bluetooth amplifier speaker Mini HIFI digital bluetooth audio power amplifier. SD Card, U disk, MP3 format play, support bluetooth wireless connection. Low distortion supplies a clearer, stronger and more powerful sound. Upgraded high power 4000W. With remote control function. DC/ AC power in, suitable for home use. Suitable for HiFi, car, home theater systems and karaoke. High quality products. Easy to install and to use. Great quality and great Fitment. Correct Connector No cutting or splicing. Give a and more sophisiticated look for your car Colour:As Shown Material:Aluminum alloy Package Contents: 1 x Bluetooth amplifier speaker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.