We are offering punta 5.1channel speaker.features:analog audio input, output.Support usb, sdmmc card music player in mp3 file format.Full function remote control, led display.Stereo fm radio.Volume, front, surround, center and bass controller.Built in 6 channel power amplifier.2.1 stereo and 5.1 input option.Compatible with mp3, mp4, pc, dvd, tv etc.