Bamboo shell make clear more ringing tone; FM radio; Compatiable with Mp3, USB, card reader, PC etc portable audio ... :100Hz-18KHz7. Product Size:222×72×119MMDescription: 1. latest Fashion Mini Speaker, Easy to take 2. Stereo Audio system with High ... (USB/Lithum battery/AC)5. Support USB/card reader / FM radio /remote control6. Compatiable with Mp3, U disk, mobile phone, PC ...