♠【Smarter Safer Security 】：keyless entry smart digital lock,Code+key+card,when you are not sure whether to lock the door,The Auto Lock function can help you solve this trouble,enable this feature and set time 1-99s,Manhaoya lock will be able to detect and automatically locked when the doors is still open for a certain period of time.

♠【Battery Dead Alarm and Emergency power function】：LED Display,Long Battery life,4pcs AA battery can provide 10000 openings (about 1 year),with low voltage alarm when the battery voltage is lower than 4.7V.If the battery is exhausted for long time not at home,you can use Android or plug Android mobile phone data line into the small USB interface under the front of panel to unlock.

♠【Hidden Keyhole,More security】：Only need to remove the cover of the key hole of the front lock panel,insert the corresponding key to unlock.

♠【Premium Zinc Alloy & Easy to install】 : Both front and back panel with this door lock are made of Zinc Alloy, Anti-impact & suitable for harsh environments. Compatible with exterior doors where keyed entry & Fits most standard residential door (door thickness of 1.5 inch to 1.9 inch), very easy to install fastly with just a screwdriver.

♠【More Convenient 】: An easier way get into your home.Allow you to enter your home without a key.When exercise in the morning is not convenient to carry the card or key ,you can use the pass code to unlock.Any trouble please feel free to let us know.【NOTE】★★★Since January 17, 2020, we have added voice prompts to our products and upgraded our operating system.If you purchased our products before, please read the instructions to operate. You can also find the method in the video below