Description
*No lock hole design, it completely abandons the traditional key and lock, in the fully opened and closed by remote control, realized the real security.
*Tiger lock method, more safe and stable.
*No keyholes outside, there is no way for thieves.
*Add USB external power source function. Make sure the lock works when battery was dead. (battery not included)
*Easy installation on all kind of doors, very convenient.
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