COMER Entry/Exit Bell Doorbell Welcome Chime Motion Sensor Detector
Usage:Infrared Sensor Alarm
Detction Distance:within 5m
Detetor Type:infrared sensor
Power Supply Mode:3*AAA batteries
micro SD card:Does not contain
Voice change:by SD card
Induction way:bidirectional induction with direction recognition.
Mini MP3 Sound Speaker Recordable Voice Announcer Direction
Recognition Infrared Sensor Alarm
1. Infrared sensor bidirectional induction and precise direction
2.Voice contents can be changed as needs.
3.Automatically trigger to play voice, available to set the
direction to play voice.
4.With power-off memory function.
5.Adopt MP3 playing program, better than the quality of ordinary
6.Support external SD card or built-in FLASH to play, preferable to
SD card which supports hot plug.
7.Support audio file copied form SD card to built-in FLASH.
8.Support to change the contents of SD card through PC (computer).
9.Standard USB interface.
10.Support to replace SD card contents directly through the PC
(computer) or USB, without any software.
11.Built-in power amplifier, speaker up to 1W/8Ω power; volume is
12.Use mini USB or three AAA batteries or USB for power supply.
13.Automatic sleep, low power consumption and long standby time.
So far, this product has been used in the exhibition hall, subway
station, elevator, gated promt, automatic loud speaker, advertising
and other promotional occassions.
Question 1: Can this product play WAV audio? If not, what’s the
Answer: This product only supports MP3 audio, no support to WAV audio. But
there are the following solutions to convert to MP3 format.
Solution 1: Install audio player software with the function of MP3 encoding
and decoding, converting WAV audio format into MP3 files. (The
simplest way is to use "TT Player" to convert the format. For the
specific operation, please use "Baidu", such as "TT Player format
Solution 2: Search online directly and download MP3 audio.
Question 2: During use, this product is found that it interrupts
when playing half, then continues to play and the cycle continues.
Answer: This is caused by unstable because lithium battery power is low or
voltage is unstable. It will work just by hanging or charging the
Question 3: After power on, in a period time there is no response
or reaction is not sensitive, such as delay phenomenon. What
Answer: After power on, there will be 10-20 seconds of power
initialization. During this period, it is normal to have no
response or slow reaction. After this time it will work normally.
Question 4: When updating audio, sometimes it needs to wait for a
moment. What is the problem?
Answer: This may be because in the last update, it hasn't finished
updating before the power is off or because the external power
supply is not stable, causing the FLASH file inside the host error
or damage. Thus, when updating audio again with power on, the main
engine will repair the FLASH file, so the time is a little long.
Qustion 5: why is the triggering voice on the set direction
contrary to the description in the instruction manual?
Answer: This may be due to the voltage instability of the power or other
reasons, causing the loss of factory direction correction mark bit
saved in the host. You just press both button A and B before power
on, then the indicator light flashes 2 times, at this time, loosen
button A and button B. By this way you can correct the triggering