This product is a great backpack lock for travel, offering a small, lightweight, and visually appealing design. It ensures the security of your boxes and backpacks, eliminating any concerns about them being left unlocked. With a weight of 0.13 lbs and dimensions of 2.76*0.91 in, this fingerprint padlock is easy to carry. It can store up to 10 sets of fingerprints and supports USB mobile charging, providing an ultra-long battery life and allowing for up to 10,000 unlocking times. Say goodbye to the hassle of passwords with this fingerprint padlock. It utilizes high-tech fingerprint induction technology, allowing you to unlock it in just 0.3 seconds. No app downloads are necessary, and you'll no longer need to worry about forgetting the password or losing the key. The lock body is made of durable Zinc alloy material, ensuring high hardness and compressive strength. Its seamless design prevents picking or smashing attempts, providing enhanced security for your belongings. This versatile lock can be used in various settings, including housing apartments, gym lockers, gates, factory workshops, offices, bicycles, electric vehicles, cabinet doors, backpacks, suitcases, file cabinets, student dormitories, staff lounges, hospital escort wards, toolboxes, take-out delivery boxes, logistics express trucks, and other public place lockers. Product Information: Color: Red Black Material: Aluminum alloy Interface: USB Size: 23*70mm Packing list: Fingerprint lock + charger + manual *1