CHAUVET DJ Stage Light Unit, Black (EZlink Par Q4 BT)100% TRUE wireless, battery-operated, quad-color (RGBA) LED Par with built-in Bluetooth wireless technologyControl directly from a smart phone or tablet without any additional hardwareConvenient, wireless non-DMX control using the IRC-6 remoteGenerate a broad spectrum of colors and achieve natural-looking color temperatures with punchy amber LEDsGenerate eye-catching effects with sound-activated and automated programsMaximum Run Time: (all on): up to 8 hours, (single color): up to 20 hours