... unlock E-lock ringtones=12pcs color vivid video &audio FCC,CE,ROHS 2010 wireless remote video door phone2.4 G ... Voice, image transmission3).Full-duplex hands-free call, clear audio and video.4).Visiting key wake up call, standby ... Info.MOQDelivery TimeSets/monthMaterial1-100sets3-25days20,000Plastic + stainless steelCertificate CE/ROHS/FCC approvedAccessory screw, rechargeable battery, ,manual, power ...