bluetooth door lock password keypad office app control mechanical key smart

it has three ways to open the door: app, password and key. unlock time less than 1.5 seconds, and automatic lock in 5 seconds. the smart door lock main body is made of zinc alloy and the panel is made of acrylic, which is durable, rustproof, ​strong explosion-proof performance, and long time to use. the smart lock is designed for android 5, for ios7.0 or above devices and gives you easy door access and tracking abilities. the app will message you door open records a