WAFU Smart Lock Electronic Keyless Door Lock Wireless Invisible Keyless Electronic Lock Remote Control Touch Locked Unlock

Features:
No hole design, open or close with remote controllers, completely overcome traditional locks' shortcomings, realized real security.
Dual system, double circuits, work independently. Using standby system to unlock when main system is broken down.
Two lock/unlock modes: remote controllers lock/unlock, indoor touch manual switch lock/unlock.
No drills needed, easy installation on all kinds of doors, very convenient.
When the battery is low, buzzer alarm, means that changing batteries is necessary.