Feature:1. 4.3inch High definition LCD screen 420TVL display,480 x 234 resolution ensure clear and high quality image display.2. Builtin lithium electricity and can be used while charging, reduce the trouble of replacing the battery.3. Digital RF modulation with frequency hopping function (automatically switching RF channels) Dynamic selection of clear channels to avoid interference from other 2.4GHz devices.4. Data protection (support user ID identification) Hypnotic music playback and with temperature display function Twoway intercom, support data encryption.5. Night vision function (effective rang 5m / 16.4ft), receiver and camera have builtin microphones and speakers; Open space transmission range up to 300m / 984.3ft.Specification:Item Type: Baby MonitorMaterial: Plastic + Electronic componentsOperating Frequency Range: 2400MHz-2483.5MHzTransmitted Power: 17 dBmmaxMonitor Sensitivity: -88dBmSpread Spectrum Type TX: FHSS SModulation Type: GFS KData Rate: 3MBPOpen space transmission range up to 300m / 984.3ftOperating Temperature Range: 0 -+ 40 Working Humidity Range: 85%RHEnvironmental Rating: For indoor use onlyMonitor Battery: 3.7V lithium polymer (included)Monitor Capacity: 5200mAh.Package List:1 x Camera 1 x Display2 x Plug 1 x Manual