Product Name: Bluetooth Padlock MK-E481
Material: Stainless Steel
Finished: Brushed
Applications: Power box, telecom cabinet, container, locker, etc.
Speciality
1. IP67 rating
2. APP Bluetooth unlock
3. APP abnormality monitor
4. Lock operation records can be checked

Source: https://www.makelocks.com/bluetooth-padlock-mk-e481.html