30.48 cm (12") WOOFER  & MAGNET H.F , 80 WATTS  RMS OUTPUT , FRONT PANEL CONTROL, WIRELESS MOBILE CHARGER, RECHARGEABLE  BATTERY, WITH ECHO & DELAY CONTROLS FOR KARAOKE SINGING , RECORDING MICROPHONE VOICE, GUITAR INPUT WITH SEPERATE CONTROL, AUXILIARY INPUT & OUTPUT,  REMOTE CONTROL.