Material : Zinc alloy Unlock way : Intercom, Face ID , Mobile App (Tuya App), Fingerprint Up to 100 User, Password, Card, Key Special Features : Can unlock the door anytime unless if there's no one ring the bell , can open live view anytime. Data Storage Options : Cloud, Memory Card Battery : 4200mAh Lithium-ion Rechargeable Batteries Certification : CE ROHS FCC
