1.USB Speaker 2.Wooden Material 3.Featured with FM+SD+USB 4.3.5mm Plug 5.Power:6W Professional Multi Card Reader Speaker with hi fi Speaker (Supporting SD Card+ USB FLASH DRIVE+FM RADIO FUNCTION)1.Rated Power:6W2.3.5mm plug3.Double hi fi loudspeaker4.Working Hours:2-3hrs5.Charging Hours:3-5hrs6.With colorful flashing light7.Convenient and easy mannul guidance8..Built-in audio decoder system9. ...