LEDENET (TM) 2.4G RGBW LED Controller Dimmer Switch Wireless RF Touch Remote Dimmable DIY Automatic Signal Transmission Synchronizing For RGBWW Light Strip Ribbon Tape Lamps (RGBW LED controller set) Synchronizing automatically Different receivers can work synchronously even when started at different times (but should be within 30 meters) Compatible with WiFi. But If you want to control RGBW or RGB strips by smartphone, you need purchase the WiFi controller (ASIN: B00N9VAOG2). color changing and brightness dimming low power consumption, long distance transmission, and strong anti-interference ability ,high speed telecommunications, etc