Essential for DJs, Musicians and Pro Audio Professionals. 12- inch high efficiency woofer IQS Sound IQ4012DJBT. This speaker delivers durability, flexibility, and outstanding audio performance with exceptional range. The speaker system is perfect for nightclubs, home entertainment, seminars, or any other venues and events. Built-in Bluetooth receiver allows you to wirelessly connect to your iPad, iPhone, iPod, smartphone, and more. USB/SD and AUX inputs allow you to connect your non-Bluetooth external audio devices. FM radio. Rechargeable battery (12V/4.5A). Volume/Bass/Treble/Mic Volume/Echo gain controls. 1 Mic/Guitar Input (1 mic included). AC Power Supply: 100-240V 50-60Hz. Remote control included. Retractable handle and wheels for easy transport. System Type: 12 woofer. Frequency Response: 20Hz-20KHz. Sensitivity (1w/1m): 65dB. Impedance: 4-8 ohm. Peak power capacity: 600Watts. Program Power: 80W.