Compatible with iPod / iPhone / iPad, Samsung i9220 / i9250 / i9300 / i9500 / i9190 / note2 / note3, HTC-G14 / Rezound / G22, Mi and come of the Android cellphones; one full charge can support taking 60, 000 photos; with 5 keys: power, pairing, shooting, Android management, iOS management; compatible with iOS 5.0 and above; power on: LED flashes; pairing: LED flashes slowly; paired: LED off; press pairing phone system key, LED on, paired; automatic sleep after 5 minutes of non-working; powered by power adapter of PC or cellphone: LED on during charging, LED off when fully charged