Semicircle glass door fingerprint lock can solve your problms of losing keys or forgetting password. It supports fingerprint unlocking/ APP unlocking/ mechanical key unlocking for more convenient use. 100 sets of fingerprints, 0.5s fast recognition, 6 months long standby time, this smart lock which is suitable for 12mm glass door can meet all your needs! Features: Supports 3 unlocking ways for more convenient use: fingerprint unlocking/ APP unlocking/ mechanical key unlocking. Fingerprint unlocking: large capacity of 100 fingerprints (2 admins included), advanced fingerprint identification chip, 0.5 second fast response. Control by "OKLOK+" APP in your smartphone: BT unlocking, remote authorization unlocking, user management, check fingerprint unlocking records in APP anytime and anywhere. Rechargeable battery, about 6 months long standby time when full charged, no need to charge frequently. Low battery prompt can remind you to charge it in time. Easy installation, no need drilling. It's suitable for 12mm glass door, and can be widely used in home, offices, hotels, shops, other public places and so on. Zinc alloy lock body and stainless steel shackle, durable to use, waterproof, dustproof, scratch resistant. Note: The first and second fingerprints are administrators by default. Specifications: Color: Silver Shape: Semicircle Material: Zinc Alloy + Stainless Steel Unlocking Way: Fingerprint + APP + Mechanical Key Capacity: 100 Sets of Fingerprints Administrator: 2 FAR: 0.002% FRR: 1% Built-in Battery: 1 * 3.7V 150mAh Lithium Battery Charging Port: Mocro USB Charge Time: about 2 hours Standby Time: about 180 Days (10 times of unlocking everyday) Door Thickness: 12mm Glass Door Sercive Life: about 100,000 Times Working Temperature: -20~70 Working Humidity: 5~95%RH (no condensation) Lock Body: 98 * 65mm / 3.9 * 2.6in (L * W) Package Size: 2 Package Boxes, 15 * 10.4 * 13.4cm / 5.9 * 4.1 * 5.3in, 10.5 * 10 * 8cm / 4.1 * 3.9 * 3.1in Package Weight: 1142g / 2.5lbs Package List: 1 * Smart Glass Door Lock 1 * USB Cable 2 * Mechanical Key 1 * User Manual (English)