Features:OOTDTY brand new and excessive qualityfor SMART INTERIOR DOOR-LOCK. Multiple unlock methods: fingerprint unlock, passwords unlock, and for key unlock. A type of leading-edge technological lifestyle, providing you more security and convenience. Widely used for home, office, homestay, apartment, hotel, and more.LEFT & RIGHT AVAILABLE. Both left handed and correct handled doors are available. Easy to install in minutes. NO Wiring or NO Drilling required. Fit for majority interior doorways of apartment, bedroom door, entry doors, homestay gates.BACK-UP for KEY INCLUDED. Package contains: 1 pair fingerprint lock; mouting 2 mechanical keys; consumer manual. High quality zinc alloy doorlock, rust-proof, designed to last.ANTI-PEEP DESIGN. You can set 2 teams of digital passwords before and after the correct password, in for case of peeping. Upgraded designed, 360° complete route id operate of dry, moist and fingerprints.HIGH PERFORMANCE. Low porwer alarm. Usb is for incident occurred that the for sensible lock became energy off, while it may be recharged through power-bank inmmediately. 4 gears sound volumes adjustable. The mute is for not aggravating your loved ones when get back at midnight.Specifications:Color: BlackPasssord: 100 GroupsFingerprint: 50 FingerprintsRecognising Time: 0.1sLanguage Support: Chinese; English; French; Spanish; Thai, IndonesianPower Supply: Battery; USB ChargingBettery: four 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 are usually not included within the package!Please enable 0-1cm error due to guide measurement. pls ensure you don't intellect before you bid.Due to the adaptation between diverse monitors, the picture might not replicate the particular color of the item. Thank you!