Using the real button to get a most concealed effect High resolution and super fine resolution CCD sensor selectable from more critical demand application Full range of our wireless kit and recording device could work optionally Specifications: Item numbers: BU-12NCK and BU-12PCK Video system: NTSC and PAL Picture element: 768 x 492 pixels 768 x 582 pixels Resolution: 450TVL CCD image sensor: 1/4 interline CCD S/N ratio: 48dB (minimum) Minimum illumination: 0.2 lux/F1.2 Electronic shutter: 1/60 to 1/120,000 seconds 1/50 to 1/120,000 seconds AGC: +18dB maximum Video output: 1.0Vp-p composite at 75 ohms Audio output: 2Vp-p (maximum) 10kHz ohms impedance MIC sensitivity: 59dB ±13dB Lens: 4.3mm Angel of view: 80 degrees Power supply voltage: 5V ±0.5V Power supply current: 250mA Dimensions (including lens): 29 x 25 x 19mm Weight: 30g Standard shipping accessories: Switching cable Battery holder Jewel box pack Optional devices: 1.2 or 2.4GHz wireless kit Miniature AV recording device