52dB  7) Video output: 1.0Vp-p / 75 ohms 8) AGC: auto 9) Backlight compensation: auto 10) Exposure mode: EE  11) Electronic shutter: 1/50(1/60) - 1/100,000 second  12) Gamma correction: 0.45  13) Internal synchronization  14) Lens: 2.8mm, 3.6mm, 4mm, 6mm, 8mm, 12mm 15) Audio: optional  16) Power supply: DC 12V  17) Operation temperature: -20 - 50°C 18) Dimensions: 38 x 38mm Inner packing; Color inner boxes Outer packing: Cartons