15-inch subwoofer and 1-inch tweeter for powerful sound Built-in rechargeable battery with up to 2.5 hours of playtime Bluetooth 4.2 for wireless streaming up to 32 ft. Multi-color flashing LED party lights for enhanced ambiance Includes FM radio, USB, Micro SD, and aux input options Durable polypropylene construction with trolley and wheels 1200W peak power output for loud, clear audio Microphone input with echo, bass, and treble adjustments