1.Infrared light face recognition, fast unlocking, can also be used at night, wide angle, and children with low height. It is forbidden to use photos, molds, etc. to unlock 2.Wide-angle camera+3.5-inch large screen can watch the peephole. 3.The door opening direction can be selected in the door lock system. 4.Power Supply: Rechargeable li-battery (Included in package); 5.Convenient APP management system, you can manage your smart lock anytime and anywhere; 6.Emergency Power Supply:Micro-USB interface to supply power if the batteries run out; 7.Fingerprint recognition:Semiconductor fingerprint recognition module, suitable for elderly and child; 8.Application:wooden door,metal door,security door Specifictions: Face Recognition Door Lock User Capacity: 300pcs Peephole: 3.5" HD IPS LED Display Doorbell pressing with PIR photo transmission APP:Tuya /Smart Life Lock mortsie:6068 Mortise Unlock Ways:Tuya App+3D Face+Fingerprint+Password+Card+Mechanical Key+(optional Zigbee) Material:Aluminum alloy Door View:Built-in Camera Power:4200mAh Lithium-ion Rechargeable Battery Door Thickness:40~120mm Front Panel Waterproof:IP66