Sony Effio 700TVL HD Hidden Camera Covert Surveillance Equipment (1) 3.7mm Pinhole Lens,24pcs IR led,audio function optional.(2) Widely Installed nearby Door, Balcon(3) Stylish Mini Case Design(4) Plastic Alarm Detector Type(5) Note: OSD Function Controlled by Cable Optional for 700TVL Products Features: Covert Surveillance Equipment ..