1、Hole Free Installation: Simple and easy to operate, only need to take out the old lock, and then replace the fingerprint lock, the installation can be completed without punching. 2、Real Time Control: Control unlocking information, you can view 1000 software unlocking records, when someone uses unlocking, you can always know the unlocking situation no matter where you are. 3、High Tech Fingerprint Unlocking: Bid farewell to the key password, 0.5 seconds rapid fingerprint recognition, one touch to open, can store 100 sets of fingerprints, to meet the needs of multiple people. 4、USB Charging: Long standby time, when the lock is accidentally out of power, use the portable power bank to charge like a mobile phone, and no longer have to worry about the lock being unable to be opened due to the lack of power or power failure. 5、High Resolution Fingerprint Module: With the help of artificial intelligence fingerprint algorithm learning technology, all round fingerprint recognition corrects the subtle errors of each unlock and automatically repairs the fingerprint, the learning algorithm continuously improves the pass rate, the more flexible it is used. 1 x Drawer Lock1 x Lock1 x USB Cable1 x QR Code Card1 x Manual6 x Screw Item Type: Fingerprint Bluetooth Drawer LockMaterial: Stainless Steel + Zinc AlloyModel: CT21FBBattery: 3.7V Lithium Battery 200mAh (Built in Battery)Misrecognition Rate: ≤ 0.01%Recognition Speed: 0.5 SecondsFingerprint Capacity: 100 PiecesCharging Time: 1 HourUnlocking Method: Fingerprint, AppCommunication Method: BluetoothAPP: OKLOK+Compatible: Drawer Cabinets, Metal Cabinets, Office Cabinets