[3 WAYS TO UNLOCK]: Advanced 3-in-1 Keyless Entry Smart Door Lock: Fingerprint + Anti-peep virtual password + Physical Key, fingerprint recognition rate up to 98% and open the door just need 1 second. You can add 50 groups fingerprints, Eliminate the trouble of forgetting to bring the key when you go out.<br>[DIY INSTALLATION]: Keyless Entry Door Lock is designed to fit US standard door, Backset 2-3/8 inch(60mm) and 2-1/8 inch(70mm), door thicknesses from 1-3/8 inch to 2-1/8 inch(35mm -55mm). No wiring and no drilling. Fit both left handed and right handed doors.<br>[Boarding &amp; HOMEOWNER]Fingerprint door lock providing your room with an added level of safety, it is simplistic design for office, apartment or other private spaces.<br>[EMERGENCY CHARGING]: Smart door lock requires 4 AAA batteries (not included), According to the frequency of use, it can be used for up to 12 months. It has low battery reminder function, equipped with a USB interface for emergency charging.<br><br>size:15x6.5cm<br>Material:Zinc alloy<br>colour:black<br><br>Package Contents:<br>1 set x door locks(Without battery)<br>2 x keys<br>1 set x installation accessories<br>1 x Chinese English manual<br><br>Only the above package content, other products are not included.<br>Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. [ TO UNLOCK]: Advanced Keyless Entry Smart Door Lock: Fingerprint + Anti-peep virtual password + Physical Key, fingerprint recognition rate up to 98% and open the door just need 1 second. You can add 50 groups fingerprints, the trouble of forgetting to bring the key when you go out. [Boarding & HOMEOWNER]Fingerprint door lock providing your room with an added level of safety, it is simplistic design for office, apartment or other private spaces. [EMERGENCY CHARGING]: Smart door lock requires 4 AAA batteries (not included), According to the frequency of use, it can be used for up to 12 months. It has low battery reminder function, equipped with a USB interface for emergency charging. [DIY INSTALLATION]: Keyless Entry Door Lock is designed to fit US standard door, Backset 2-3/8 inch(60mm) and 2-1/8 inch(70mm), door thicknesses from 1-3/8 inch to 2-1/8 inch(35mm -55mm). No wiring and no drilling. Fit both left handed and right handed doors. Hardware lock type Door Locks Features Keyless Entry Brand Unbranded Material Zinc alloy Color Black Compatibility US standard door, Backset 2-3/8 inch(60mm) and 2-1/8 inch(70mm), door thicknesses from 1-3/8 inch to 2-1/8 inch(35mm -55mm) Rec. use Office Handing Ambidextrous Items included 1 set x door locks (Without battery) 2 x keys 1 set x installation accessories 1 x Chinese English manual Accessories Keys, Installation Accessories, Chinese English Manual Has written warranty No Size 15x6.5cm