Keyless entry door lock: Two unlock modes- fingerprint and emergency key, after enrolling your fingerprint, biometrics technology with 98% recognition rate helps you never carry the key to go out, two mechanical keys just work as emgency key or reserve key.
More Secure and Convenient for your life: It needs 4 pcs AAA alkaline batteries, works about 1 year, when it runs out, red light will flash to remind you to change battery, When you go home and the battery runs out, you can use Android or plug Android mobile phone data line into the small USB interface in the front of front panel to unlock.
