Features:OOTDTY brand new and high qualityfor SMART INTERIOR DOOR-LOCK. Multiple unencumber methods: fingerprint unlock, passwords unlock, and for key unlock. A variety of modern technological lifestyle, offering you extra safety and convenience. Widely used for home, office, homestay, apartment, hotel, and more.LEFT & RIGHT AVAILABLE. Both left passed and correct dealt with doors are available. Easy to put in in minutes. NO Wiring or NO Drilling required. Fit for majority interior doorways of apartment, bed room door, access doors, homestay gates.BACK-UP for KEY INCLUDED. Package contains: 1 pair fingerprint lock; mouting 2 mechanical keys; consumer manual. High high quality zinc alloy doorlock, rust-proof, designed to last.ANTI-PEEP DESIGN. You can set 2 groups of virtual passwords before and after the correct password, in for case of peeping. Upgraded designed, 360° complete direction identity operate of dry, wet and fingerprints.HIGH PERFORMANCE. Low porwer alarm. Usb is for incident happened that the for wise lock became power off, while it can be recharged through power-bank inmmediately. four gears sound volumes adjustable. The mute is for not demanding your loved ones when come back at midnight.Specifications:Color: BlackPasssord: one hundred GroupsFingerprint: 50 FingerprintsRecognising Time: 0.1sLanguage Support: Chinese; English; French; Spanish; Thai, IndonesianPower Supply: Battery; USB ChargingBettery: 4 AAA Batteries (Not Included)Low Battery Current <150maLow Battery Alarm: 4.3VCurrent: <30Ua6VSize: Approx. 14.6x6.4cm/5.74x2.51inHandle Width: Approx. 2.8cm/1.1inMaterial: Zinc AlloyWeight: Approx. 900gPackage Includes:1 Set Fingerprint Door LockNote:NOTICE:4 AAA Batteries usually are not incorporated in the package!Please allow 0-1cm error due to manual measurement. pls make sure you don't mind before you bid.Due to the adaptation between diversified monitors, the image may not reflect the particular color of the item. Thank you!