Use for your homer entertainment seminars and other indoor/outdoor events. Designed with 2 x 12" high efficiency woofers. Stream audio via Bluetooth from an enabled device. USB Micro SD and Auxiliary inputs connect to non-Bluetooth devices. Built-in FM radio. LED light show on speaker front. Volume mic volume echo gain controls. Features handle and wheels for transporting. Rechargeable 12V 4.5A battery. Frequency response: 50Hz-20kHz. AC Power supply: 110V-140V 50/60Hz. Dimensions: 13.78" x 12.22" x 37.78". Includes Microphone and Remote control.