Set your worries on the shelf with a Book hidden camera. Nestled in the pages of this under cover book lies the answers to all your questions. The camera is located on the spine of the book so book must sit upright as on a shelf. Book measures 9.5" x 6.5" x 1.75".The book hidden camera is powered by a 12 hour rechargable battery pack, no wires or cords to plug in. Black & White Options •HC-BKCAM-W Wired Camera •HC-BKCAM-W-X Wired Camera with X-Vision •HC-BKCAM-G Wireless Camera with FREE 2.4 GHz Receiver •HC-BKCAM-G-X Wireless Camera with FREE 2.4 GHz Receiver and X-Vision •HC-BKCAM-G-HP Wireless Camera with High Power 2.4 GHz Transmitter •HC-BKCAM-G-HP-X Wireless Camera with High Power 2.4 GHz Transmitter with X-Vision Color Options •HC-BKCAM-GC Wireless Camera with FREE 2.4 GHz Receiver •HC-BKCAM-GC-HP Wireless Camera with High Power 2.4 GHz Transmitter •HC-BKCAM-WC Wired Camera Includes: • Wireless cameras include FREE 2.4 GHz receiver (a $160.00 value) • All necessary power supplies and battery packs are included. Options: • High Power is available with most 2.4 GHz transmitters and will increase transmission distance up to an addtional 1500 feet...increasing your wireless transmission up to 2500 feet. • X-Vision (.003 Lux) is a feature only available on black and white cameras. Allows best possible images in almost complete darkness. 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 V DC/110V AC