AUDSTER AUD-R315 •Rechargeable Active Speakers •P.M.P.O. Max Power:2500W •Rechargeable battery up to4-6 Hrs •Led RGB on15 inch Woofer •MP3 Player USB & Micro SD input •Bluetooth function •Wireless remote control •One VHF wireless Hand mic included •Bass/Treble and Master Gain •Master Gain for the wireless Mic •Echo function •Aux Input Jack 3.5mm •Mic input