Portable Speaker - Pump out room-filling, high-quality audio with ease Bluetooth Wireless Technology - Allows you to stream all your favorite music content from Bluetooth-enabled devices in high-quality audio Microphone Input - Versatility to connect a microphone and sing along to your favorite tunes or use it as a PA system Flame RGB LEDs - Lighting effects that dance along with the music Built-in Rechargeable Battery - Enjoy playback at home or on the go without being tethered to a wall outlet. FM Radio - Enjoy your favorite local radio stations with the FM tuner Trolley System - An extendable handle and built-in wheels allow you to transport your party speaker comfortably Speaker Output: 20W Speaker Drivers: 15' Woofer + 1.5' Tweeter FM Frequency range 87.5-108MHz Playable Media Format: MP3 Input: Aux, MIC, USB playback, TF Card Playback, Guitar Controls: Treble, Bass, Mic Volume, Echo, Master Volume, Guitar Volume Power: DC 5V 2A Battery: 3.7V 3600mAh Power Cord Length: 4ft