Product Info: 2.4-inch Wireless Baby Monitor with 480 x 240 Pixels Resolution and Built-in Microphone Features: 2.4" TFT-LCD with 480 x 240 resolutions Bedwetting/Motion/Voice Detection Optional Night vision (effective range: 5m) Built-in microphone in camera and speaker in receiver for audio monitoring 4 channels optional to avoid possible interference Up to 100m (330ft.) transmission range in open space Specifications: General: Transmission frequency: ISM 2,400 to 2483MHz Transmission power: 10mW/CE and 2mW/FCC Operating frequency: 2,414, 2,432, 2,450 and 2,468MHz Unobstructed effective range: 100m (minimum) Modulation mode: FM Operating temperature: -10 to 50 and +14 to 122 degrees Celsius Operating humidity: under 85% Camera: Imaging sensor type: CMOS Picture total pixels: NTSC: 720 x 480 pixels PAL: 720 x 576 Pixels Minimum illumination: 0 Lux (IR on) Night vision distance: 5m Bandwidth: 18m Battery working time: 8 hours (IR off) Motion alarm distance: 5m Sound detection sensitivity: 63dB Maximum current consumption: 22mW (IR on) Maximum current consumption: 120mW (IR on) Power supply: +8V DC Dimensions: (W) 86 x (D) 49 x (H) 135mm Weight (about): 146g Receiver: Screen type: 2.4-inch TFT LCD Effective pixels: 480 x 240 pixels Video system: NTSC/PAL Color configuration: RGB Receiving sensitivity: under -85dBm Maximum current consumption: 300mA Battery working time: 5 hours Power supply: +8V DC Dimensions: (W) 86 x (D) 54 x (H) 142mm Weight (about): 142g