This smart padlock only needs to carry a mobile phone to complete the unlocking task. Its principle is to connect the mobile phone and the padlock two objects through Bluetooth, and then use Bluetooth technology to unlock.
Bluetooth tools have been used for a lot of time, and everyone will use it to communicate with other objects. Bluetooth technology is very mature in modern times. You don't have to worry about connecting to the padlock for a long time. Just press and hold the button on the padlock, and then open the phone app to connect with each other. The unlock button will be displayed on the phone. After clicking, the lock will be displayed. The child will open immediately, or it can be set to directly unlock the function after the two are connected. The process of unlocking mainly uses the control technology of the object on the Bluetooth. After the two are connected, the control operation can be performed.