WIRELESS FREEDOM: Bluetooth-compatible wireless karaoke mic allows singing up to 30 feet away from the speaker. MULTI-FUNCTIONAL MODES: Supports Bluetooth, USB, and AUX-in modes for music playback and karaoke from devices. VIBRANT LIGHTS: Built-in RGB lights pulse and change with the beat for an exciting party atmosphere. CRYSTAL CLEAR SOUND: Dual full range drivers and bass radiator deliver room-filling sound quality for your performances. LONG LASTING POWER: Rechargeable lithium-ion battery provides up to 12 hours of continuous playtime or karaoke fun.