Description :

 
 KERUI M5 Multifunctional Electronic Infrared Wireless Welcome Alarm Sensor Doorbell Guard Defence
  

 Features :

 
 Infrared sensor adopt to digital fuzzy treatment.
 Automatic temperature compensation.
 Radio frequency anti-interference.
 Integrating a variety of functions, welcome, wireless doorbell and guard defence.
 Choice of power supply: 3pcs AAA battery and 9-15v power adapter.
 Support human voice, 32 beautiful songs and alarm.
 4 levels of adjustable sound volume.

  

 Package includeds :

 
 1 x KERUI M5 Welcome Alarm
 1 x Power Supply (US \/ EU \/ AU \/ UK Plug for Optional~)
 1 x Set of Installation Accessories
  

 Details pictures :