Screw camera,button cam

Description Worlds smallest wireless spy camera / receiver pack with or without sound. can hide in just about anything belongs to your environment (clocks, lamps, radios, smoke detectors, books, sun glasses, etc.), Detection is much more difficult then a normal camera........ Great for nanny watch. thousands of children are being abused by the bad nanny. Specification Size ：15×15×20（mm） Camera apparatus ：1/4 picture sensor System ：PAL/CCIR NTSC/EIA Validity pixel ：PAL：628×582 NTSC：510×492 Picture area ：PAL：5.78×4.19mm NTSC:4.69×3.45mm Horizontal definition ：380line Scan frequency ：PAL/CCIR：50HZ NTSC/EIA：60HZ Minimum illumination ：3LUX Sensitivity ：+18DB-AGL ON-OFF Output power ：300mW/50mW Output frequency ： 0.9G/1.2G Frequency control : adopt CPU frequency lock the wreath to control, with high frequency stability Transmission signal ：Picture、Sound Deliver the distance ：300～500M/50～100M Voltage ：DC+9V Current ：200mA Power consumption ：≤640mW