Privacy record does not leak out

Some other Bluetooth smart door lock would like to collect users operation record and store this "Big Data" into their "internet service center". If the record happen to leakage or someone collect this malicious for vicious purpose, such as a family's lifestyle pattern.

Therefore, we adopt privacy protection as our major design guide, for example, it can be operated well offline, and the operation record only store in locks, owner can read the record if necessary.