Rainbow7 Wireless App Control Multi-Color LED Mood Light Bulb The Rainbow7 app uses Bluetooth 4.0 for communication through your Android SmartPhone or Tablet to directly control your iLuv Creative Technology energy effective multi-color LED smart bulb (sold separately). Features: - Change bulb color to desired lighting effect - Control one or multiple bulb(s) at the same time - Dim one or multiple light at the same time - Control bulb up to 100ft away - Turn on/off with App or standard switch -