Features With Longer And Larger Tempered Glass Handle Panel, Which Can Cover The Door Holes Left By The Old Lock With Peephole Camera, It Supports Photo Capture Remotely Unlock, Tuya App View The Unlocking Records Including Photos 3d Face Scanning To Unlock In Seconds Without Contact,prevent Photo And Video Unlocking Built In Hd Color Screen, Check The Situation Outside The Door Anytime Unlock Methods: Face Scanning/ Tuya Wifi / Fingerprint / Password / Smart Card / Key Unlock Wifi Connect, With Built-in Gateway, No Extra Gateway Required, Tuya App Remotely Control, K12 With 5-language System Voices (arabic / English / Portuguese / Russian / Spanish ) To Switch Freely, Easy To Set Up. With 2500 Mah Rechargeable Lithium Battery Universal For Left And Right Doors, Suitable For 35-55 Mm Door Thickness. Package List： Front Panel X1 Back Panel X1 Mortise Lock X1(options) Ic Card X 5 Mechanical Key X2 Screw Kit X 1 User Guide X 1 2500 Mah Rechargeable Lithium Battery X1