Unlock with your fingerprint in just 0.5 seconds – your finger is your key! Stores up to 20 different fingerprints, including 2 administrator fingerprints. Easy to use and no need to worry about losing keys or forgetting passwords. Features low energy consumption and a long standby time. A full charge supports one year of standby and over 2000 unlocks. If the battery is low, the smart lock will remain locked and display a light status. Simply use a USB cable to power the lock and it will start working again. Meticulously crafted from a solid aluminum alloy body and a stainless steel handle for excellent cut resistance. IP67 weather-resistant, dustproof, and waterproof. Portable smart lock, small in size, carry it anytime, anywhere. A smart and powerful universal fingerprint lock for indoor and outdoor use. Perfect for gyms, doors, warehouses, cabinets, sheds, suitcases, handbags, drawers, bicycles, bikes, luggage, fences, garages, offices, etc. Size: 43*64mm