Perfect combination of mechanical code lock and electronic fingerprint lock The codes and fingerprints of all other safes require battery drive. If the battery is dead or broken, the fingerprint isbroken, and the password is broken, the safe can't be opened. But this safe, if the fingerprint is broken, the battery is dead or broken, it will not affect the code unlocking at all, because the code is a pure mechanical structure and exists independently. No matter how abused, the mechanical code will not be damaged. This is the only safe in the range with this function on the world. Feature : High resolution fingerprint image: Fingerprint module resolution up to 508DPI Built-in anti-prying steel wall: On both side of safe to prevent forced opening Semiconductor fingerprint chip:Made by Apple's supplier world-renowned high-tech Super fast feedback speed:The fingerprint chip will unlock safe within 0.5 seconds Support up to 1000 combinations Long standby:The safe can work for 1 years with one charge (it is recommended to charge once every 3 months to maintain battery activity) Matt black coating on inside and outside surface:360 degree beautiful and has no dead corners High-end anti-cutting steel cable:Equipped with an anti-cutting steel cable with a diameter of 4mm(5/32' dia & 4.1 feet longth ), with a tensile strength as high as 1500kg (3300Lb) The thickness of the steel is 1.2mm (18 Gauge) Anti-scratch fingerprint reader:Super hard fingerprint reader, even if it is scratched by a knife, it can still work Eco-friendly & kids friendly coating:Dried at 185(365 ),protect the safe from rust Steel plate made by BAOSTEEL:Baosteel is a Fortune 500 steel company in the world Large area fingerprint reader:10*10mm As many as 10 fingerprint users Smart and cute:Can be placed in a drawer, under the car seat, in a backpack or luggage Low battery reminder:When the voltage is lower than 3.5V, the system will flash the light to prompt charging Hidden prying-resistant hinge:Can't be destroyed from the outside Matt black coating:elegant and graceful Operating temperature:The circuit board still works normally at - 30(-22F)to 70 (158F) USBC charging port:Compatible with Android smartphones High-density sponge,20kg/M3(1.2 Lb/ft3) Ultra low power consumption:Power consumption is only 60 A per day Sponges on top and bottom:To keep the gun from scratching TSA-APPROVED:Put firearm in safe,put it in checked luggage,legally carry the firearm on plane Specification: Battery :180mah polymer lithium battery Battery life : 500 charge-discharge (10 years) Battery voltage 3.7v Battery charging time 1h Recommended charging interval 3 months Static power 60A Dynamic power consumption 3ma Battery run time 1 year(Open box once a day) Overcharge protection voltage 4.25v Low voltage alarm less than 3.5v Unlocking methods 1.Fingerprint 2.Mechanical code User quantity Fingerprint 10,Code 1 Digital longth 3 Number of passwords 1 Charging port Type-C Fingerprint module resolution 508DPI Fingerprint feedback time 0.5S Steel plate thickness 1.