Features: 1. 360° fingerprint recognition, which can recognize fingers at different angles to unlock. 2. Fingerprints cannot be copied, it is safer and more stable. 3. Unlock without a key, <0.5s speed fingerprint unlock, high fingerprint recognition rate. 4. External USB mobile power emergency socket, when you go out and come back, there is no need to worry that the door lock can not be opened without electricity. 5. It can record up to 20 fingerprints to suit your needs. 6. When the power is low, the red light flashes three times in a row. At this time, the fingerprint lock can be charged by the data line. 7. Charging for 30 minutes using the USB charging port, you can stand by for one year and unlock 3000 times. 8. The green light indicates that the fingerprint identification is correct, the red light indicates that the fingerprint identification is not passed, and the blue light is the management mode. Specification: Condition: 100% Brand New Item Type: Fingerprint Padlock Material: ABS Unlocking Method: Semiconductor fingerprint Power Supply Mode: Built-in lithium battery power supply Fingerprint Capacity: 20 Number of Open Doors: 3000 times Standby Time: 1 year Unlocking Time: 0.5s Antistatic: 8-15KW False Reject Rate : <1% False Accept Rate: <0.002% Color: Black Battery: 3.7V, 280mAh (Built-in) Working Temperature: -20-65℃ Working Humidity: 0-90% Fingerprint Lock Size: Approx. 30.3 x 30.2 x 7mm / 1.19 x 1.19 x 0.28in Lock Box Size: Approx. 87.9 x 22.2 x 65mm / 3.46 x 0.87 x 2.56in Package List: 1 x Fingerprint Lock 1 x Lock Box 1 x Lock Catch 1 x Installation Kit 1 x User Manual Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1、360° fingerprint recognition, which can recognize fingers at different angles to unlock. 2、Fingerprints cannot be copied, it is safer and more stable. 3、Unlock without a key, <0.5s speed fingerprint unlock, high fingerprint recognition rate. 4、External USB mobile power emergency socket, when you go out and come back, there is no need to worry that the door lock can not be opened without electricity. 5、It can record up to 20 fingerprints to suit your needs.