Features: Replace your outdated peephole with a modern video doorbell that maintains your door's original look while adding intelligent security features. With night visible technology, the doorbell can capture clear picture even in low light conditions. The doorbell comes with a builted in intercoms systems that allows you to communicate with visitors before opening the door. Receive accurate smartphone notifications when the detects people (not just motion), helping prevent package theft and unwanted visitors. Easily install: Not need for complicated wiring, the doorbell connect wirelessly to your home 2.4g WiFi. Specifications: Component: ABS Camera doorbell size: about 49x80x24mm/1.93x3.15x0.95inch Receiver size: about 67.6x45x16mm/2.66x1.77x0.63inch Lens: 0309 480P 640x480 Battery model: 800mAh Power input: 5V-2A Recording ranges: 5m Wireless connection: 2.4GHz, 433MHz Package Includes: 1set Wireless Doorbell note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.