KAK Biometric Fingerprint Lock Black Keyless Cabinet Lock Smart Drawer Locks Anti-theft Door Lock Long Standby Time Door Hardwar Item Description Power Supply:DRY BATTERY Suitable Door Type:Steel Door,Wooden Door,Brass Door,Stainless Stell Door,other Doorknob Funcition:Biometric Ways To Unlock:Face Recognition Material:zinc Alloy Handle Direction:Direction Reversible Model Number:KAK-JCDS Origin:Mainland China PARAMETERS Brand: KAK Color: Black Material : ABS and zinc alloy Lock Size : Please check following photo Fingerprint Capacity: 20 Powersupply: 3 x AAA Batteries ( not included ) Package includes: 1 set of fingerprint cabinet lock with necessary accessories Super Quick Response The fingerprint lock can recognize your fingerprint in only 0.5 second and unlock immediately! Low Battery Alert When you open the lock, the light is red and flashes 3 times, it is noticing you to replace new batteries! Backup Unlock Method Here is an emergency USB key, in case of unable to unlock due to cracked fingers and other reason. If the battery power is empty, you can charge it by power bank. Super Long Standby Time 365 Days 3 AAA batteries can last working for about 365 days ( please notice battery is not included parcel ) Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.