ITEM NAME:Sensor Motion Door Bell Switch MP3 Infrared Doorbell Wireless PIR Motion SenS7Y5 Sensor Motion Door Bell Switch MP3 Infrared Doorbell Wireless PIR Motion SenS7Y5 The infrared doorbell has 4 meters of effective sensing distance, and it will play the prepared sound when someone enters the effective sensing range. The audio files can be replaced by yourself, just connect it to computer by USB data cable, then copy new audio files(MP3 formats only) to the player. Your MP3 files will playback automatically after the PIR sensor has been activated.(Note: it can be recognized on Win7/XP computer, but it may be not recognized on Win 8/10 computer) Widely Use in Shop: When detecting the human body passing, it will give out warm.The audio files can be replaced by yourself, just connect it to computer by USB data cable, then copy new audio files(MP3 formats only) to the player. (Note: it can be recognized on Win7/XP computer, but it may be not recognized on Win 8/10 computer).
