12.4G wireless digital signal transmission, more than 250 frequency hopping, free from WIFI interference. 2The digital signal is encrypted for transmission and has good security. 3The barrierfree transmission distance is up to 200 meters, and the distance of the partition wall is up to 30 meters. 4With a 4.3inch highdefinition LCD screen, the image display is clearer. 5Both the camera and the monitor have builtin batteries, and the use time exceeds 2H. 6The builtin baby sleeping lullaby can be played by controlling the camera on the screen. 7The monitor has a temperature display, Celsius and Fahrenheit can be switched, and has a twoway intercom function. Condition:100% Item Type:BabyMonitor Voltage: 110240V Plug Type: EU Plug Material: Plastic Indoor Distance: About 1030 meters Outdoor Distance: About 15 meters200 meters NightVisionDistance: About 5 meters Cellphone App: Not support Display: Builtinlithiumbattery, 29587 model, 2000 mAh(included) Monitor: Builtinlithiumbattery, 69548 model, 1200 mAh(included) } 1 x Displayer 1 x Monitor 2 x Charger 1 x Manual Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.