Fingerprint padlock: A smart high-tech padlock that detects fingerprints and has an automatic identification function. You don't have to worry about forgetting your password. You can quickly unlock it within 1 second. Our fingerprint padlock can contain up to 10 passwords. You can also authorize the lock to share for your family/friends to use it. USB Charging, Long Standby TimeOur intelligent fingerprint lock has lower power consumption and longer standby time. The rechargeable 150mAh USB battery can unlock up to 180 days (average 5 times per day) and 2000 times in a row. Low power consumption and long standby time. When the battery is empty, the smart lock remains locked. Simply connect it to the USB power supply and restore it. USB ChargingThis intelligent fingerprint padlock is equipped with a 240mAh lithium battery, which has low power consumption and a long standby time. It can be unlocked about 2500 times on one charge. When the battery is empty, it stays locked. To charge, simply use a USB power supply (no more than 5V), and the process will continue. Widely used: Small, easy to install, safe and stable. Suitable for luggage, doors, containers, bicycles. The fingerprint lock is suitable for indoor and outdoor use, can be used for home, company, office, etc. and say goodbye to keys and cumbersome combinations. Never worry about losing your key or forgetting your password. Waterproof and durable: The fingerprint lock is made of high-quality zinc alloy lock, is durable and reliable. The waterproof quality reaches IP65 and can be used for outdoor dust prevention. Suitable for all weather, small, easy to carry. The English manual is included, if you need the German manual, please contact us, I wish you a happy use.