【Smart Lock Technology】 Highly accurate fingerprint RECOGNITIO-N, unlock the door within 0.3 seconds, and store up to 30 unique fingerprints.【 Modern Luxury Design 】The lock made of high quality aluminum alloy material and streamline design, intuitive LED touch-pan make it more luxury and fashionable. 【 Smart Door Lock】Fit for most standard door, both fit left & right handed doors.Small size, fingerprint RECOGNITIO-N technology optimized to identify dry, wet fingerprints. Door thickness range: 1.18 inch to 2.17inch thick.【Easy Installation】The wire free technology makes installation quickly and easily, also security. All it need is just a small screwdriver, about 15 minutes you【 Convenience & Smart life】Wire free design and battery long standby , low battery notification, emergency power supply. Door lock requires 4 AAA size batteries (not included)