30.48 cm (12") WOOFER & MAGNET TWEETER, 100 WATTS RMS OUTPUT , BACK PANEL CONTROL , RECHARGEABLE BATTERY, WITH ECHO / DELAY / REVERB CONTROLS FOR KARAOKE SINGING, RECORDING WITH LYRICS, GUITAR INPUT WITH CONTROL AND 2 PCS WIRED MICROPHONE INPUT , TWS PAIRING, RCA INPUT / OUTPUT, REMOTE CONTROL.