Description
Features:
*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.
*Extended antenna, stronger signal, safer and more responsive.
*Add USB external power source function. Make sure the lock works when battery (not included) was dead.
*Two unlock modes optional: Remote control unlock indoor button unlock
*Easy installation on all kind of doors, very convenient.
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