【BLUETOOTH UNLOCK】: Smart lock, no key required. After pressing the wake-up button, enter a 6-digit password in sequence so that the keyboard password can be unlocked correctly. Open the lock due to dirty fingerprints. 【EXTREMELY LONG USAGE】: Built-in button battery, no charging needed. A button battery can open and lock more than 1000 times and can be used for over a year! Also designed with a spare battery compartment, if the battery runs out when the lock is inactive, simply attach the new battery to the spare compartment and enter the button password to unlock. 【VIEW UNLOCK HISTORY IN REAL TIME】: The download app connects to the lock via Bluetooth, supports iOS and Android systems, and works with 99% of the most common mobile phone brands on the market. You can view the lock/unlock history anytime through the phone app. 【COMPACT STRUCTURAL DESIGN】: The body of the Bluetooth smart lock is made of zinc alloy, and the lock bar is made of stainless steel for superior corrosion resistance. Protect your cabinet or home from thieves. And the lock is light and easy to place in a pocket. 【WIDELY APPLICABLE】: Bluetooth lock, small and light lock for outdoor use. Suitable for luggage, travel bags, doors, cabinets, trailers, bicycles, tailgates, goods, warehouses, and more.