Specification: Origin: Mainland China Material: ABS Main control: Jianrong+2,4G module Image sensor: GC0328/85 degrees/6 infrared lighting fill the sunshine Display: 4.3-inch IPS display Video resolution: 640*480 Battery model traditional configuration: 800 mAh, permanent functionality for 1-3 months SD card: Maximum support for 128G/MJEPG format Audio information: integrated speakers, microphones WIFI mode: 2.4G private protocol, transmission distance 1-150 meters (link between host and display) Power supply information: DC5V/2A Working temperature: -10℃~60℃ Working humidity: 10%~90% Packing size: 180x120x80mm/7.09x4.72x3.15inch Note: Due to different computer screen and lightweight effect, the actual colour of the object might be slightly diverse from the colour showed at the pictures. Thank you! Please allow 1-2cm measuring deviation thanks to manual measurement. 1 x Doorbell Display 1 x Display Screen 1 x Manual