Advanced fingerprint recognition enables quick one touch unlocking without traditional keys for daily convenience Waterproof structure adapts to indoor and outdoor environments and maintains stable performance in humid conditions Built in rechargeable battery supports USB charging and features long standby time for frequent daily use Solid metal construction enhances anti theft ability and safeguards personal items luggage and private storage Compact lightweight design is easy to carry ideal for travel fitness locker bicycle and personal storage use, Manufacturer: DIGNIFE