Fingerprint Door Lock Handle USB Rechargeable Anti Theft Smart Electric Biometric Keyless Security Entry with 2 Keys for Apartment Hotel Bedroom Home Feature: Material: Made of zinc alloy material, durable and sturdy to use. Safe and Reliable: Fingerprint recognition lock, convenient fingerprint settings,safe and secure. High Efficient: The lock can recognize 30 fingerprint and the recognition speed is 0.25s. Power Supply: The fingerprint door lock powered by 4pcs x AAA dry batteries(not included), and meanwhile with USB charge port for emergency. With 2 Keys: Each fingerprint lock is equipped with 2 mechanical keys, which will enable users to unlock in traditional method. Biometric lock: Using biometric fingerprint technology, the door can be unlocked by fingerprint in only 0.25s, which is safe and reliable. Large capacity: The smart lock can store 30 fingerprints and can be opened easily and conveniently. Wide range of uses: Made of high-quality zinc alloy, strong and durable, suitable for families, apartments, personal residences, hotels, etc. Specification: Material: Zinc Alloy Color: Black, Grey, Silver Port: USB Interface: 4 X AAA dry batteries(not including) Working temperature: -20-55/deg;C Recognition time: 0.25s Fingerprint capacity: 30 Adjustable center distance: Up to 70mm/2.75/quot; Size: 14.5 X 6.5 X 2.8cm/5.7 X 1.1 X 2.55inch (L x W x H) Weight: 912g/32.17oz Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. 1 X Fingerprint Door Lock 2 X Keys 1 X Installation Accessories Package 1 X Packing Box