Anti-Peeping Password: Virtual password entry with anti-monitoring function. Enter random digits before or after your password. For example, if the correct door opening password is 123456, enter XXX123456XXX to open the door.
Long-lasting Battery Life: Rechargeable Li-Ion battery with battery life of up to 6+ months. Up to 2000 unlocks in 1 full charge. This lock has a low battery alarm function, reminding you to charge in a timely manner.