Talk about a hidden camera. Mount anywhere a screw would normally be found. Who would ever notice a tiny little screw is actually a camera? Wireless cameras powered by a 8 hour rechargeable battery pack, no wires or cords to plug in. Wired cameras you just plug into a electical socket. Black & White model's minimum illumination is .05 Lux

Color
•HC-SCREW-GC Wireless Camera with FREE 2.4 GHz Receiver

Includes:
• Wireless cameras include FREE 2.4 GHz receiver (a $160.00 value)
• All necessary power supplies and battery packs are included.

Specifications:
Image Sensor: 1/3" Sony CCD (B/W) 1/4" CCD (Color)
Resolution: 400 Lines(B/W) 380 Lines(Color)
Min. Illumination: .05 Lux (B/W) 1 Lux (Color)
Lens: 3.7mm Wide Angle
Power Required: 12 volts