What you are view is a 3.5inch LCD 2.4G Digital Wireless Video Doorphone. The wireless video doorphone adopts 2.4GHz radio band to transmit digital audio and video signals.The transmission distance of the wireless video doorphone is about 300 meters in an open terrain. Robust high degree of confidentiality and anti-interference ensure the high performance. Wireless video intercom is very easy to install and operate! 2.4G wireless video doorphone has a wide-angle lens camera to supply clear night vision. Indoor monitor uses 3.5 inch high-definition screen. The item has very clear and amazing view. Wireless design you can monitor your environment in house.Feel free to operate the program where the wireless signal can reach, such as living room, dining area, terrace, kitchen and so on. An excellent safety wireless video doorphone for advanced families. The wireless video system can be used in villas, hotels, apartments, workplaces, public properties etc.