12" High efficiency woofer. Built-in Bluetooth to wirelessly connect to devices. Rechargeable battery. USB and SD inputs. Disco ball light. FM Radio. 1 Mic input. 1 Guitar input. AC Power supply: 110V-60Hz. Built-in handle and wheels. Remote control. Frequency response: 30Hz-20KHz. SD Card reader. 4 ohm Impedance. Speaker sensitivity: 65dB. Includes 1 microphone. Dimensions: 16" x 13.25" x 26.5".