Mobile Phone Remote Doorbell Surveillance Camera.

OS: LiteOs, Processor : T31, View angle : 720", Camera pixel : 1080P, LCD screen : 4.3' 480'272, Battery capacity: 5000mAh Video and two-way audio : support motion detection ; support IR LED wave length : 850mm Battery charger : 5V/2A Door peephole: 014-28mm Door thickness : 35-120mm, External storage : TF card (Max 128GB) Wireless WIFI : ieee802.11b/g/n 2.4GHz