New Wireless Motion Sensor Doorbell Automatic Door Bell MP3 Audio Player Welcome PIR Detector Alarm for Shop Store Visitor Greeting

Price:
US$15.78

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Wireless Motion Sensor Doorbell Automatic Door Bell MP3 Audio Player Welcome PIR Detector Alarm for Shop Store Visitor Greeting

Features :

Pyroelectric infrared sensor induction.
AAA batteries or Micro USB power supply.
Have micro USB interface, able to replace audio files through micro USB interface by USB cable on computer.
Power-off memory function.
Built in 4Mbyte FLASH memory.
Built in 29mm 8Ω1 watt speaker.
MP3 audio format.
 
Specification :

Alarm: Yes
Detector: Infrared detector, automatic induction
Induction range: Less than 4m, within 45 angle
Power supply: 3 batteries or USB power adapter
Function: Audio downloadable from computer by USB cable
Memory: Built in 4M byte Flash memory
Installation: Ceiling mounted or wall mounted
Audio format: MP3 audio format
Sample rate: 44.1Khz/320Kbps

 
Package Includes :

1 x Wireless Motion Sensor Doorbell

 
Details Pictures :