LinkMejor Keyless Entry Door Lock with Code, Electronic Keypad Deadbolt

Adjustable Volume
You can use the keypad to adjust the volume of the voice navigation up or down.

Silent Mode
You can adjust the volume of voice guidance on the keyboard of the door lock, or set it to silent mode to avoid disturbing other people.

Suitable for Indoor and Outdoor
This smart door lock has great high temperature resistance and low temperature resistance, and has an IP56 dust-proof and water-proof rating. Suitable for both indoor and outdoor use. Operating temperatures range from -22℉ to 176℉ (-30℃ to 80℃).

Emergency Unlock Mode
Unlock your keyless entry door lock using a Type-c charge when it is out of power. With low power consumption of keypad deadbolt, 4*AA batteries( Not included )can last for 365 days. It also has low power alarms, so don't worry about forgetting to change the battery.