7.Anti-peeping function,Better Privacy Protection.

8.Low Battery Alarm function:When the battery is running out,it will automatically issue “didi”prompt tone.

9.Overlength standby,standby times up to 365days (Power supply:4 pcs AA batteries(Not included).

10.Equipped with USB emergency charging port.

11.Suitable for the thickness of 30-100mm door,No need to worry about being unable to install(If you door thickness is over 50mm,please contact us before purchasing)

12.Meet diverse needs,universal for all direction(Left-pull/push,Right-pull/push).