Firefly-lighter app will control your iPhone flashlight and display background colour to form incredible light effects during the event.
Your flashlight will be a part of a big dynamic picture formed by all phones connected to the system.
Youll see the amazing dynamic image formed by raised hands of the crowd.
Your phone will flash with the beat of music together with hundreds of devices.
Your display will form an awesome coloured background to multiply the impressiveness of the show.