User Manual

Shenzhen Waytronic Electronics Co., Ltd. Microsound V22.15
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1. Brief introduction
Microsound can sense human activity information with the technology of infrared pyroelectric principle. When
someone enters the induction range, it can accurately identify the human activities. It looks like a cat's eyes, not
depending on light. Even in the dark environment, it can work stably and reliably, overcoming the shortcomings of
light induction.
It is small and exquisite, easy to carry and has a beautiful sound. Human body induction triggering, large
induction range, sensitive. Intelligent triggering, no need to have manual operation. One of the main
characteristics is using our company’s mature technology of human body induction. When detecting the human
body passing it will give warm prompts, warnings and welcomes or other voice at the first time. According to the
different applications, different audio files can be replaced at any time.
This product has been used in the exhibition hall, subway station, elevator, gated prompt, automatic
loudspeaker, advertisement and other promotional occasions.
2. Product features

Small and exquisite, MP3 audio format, excellent sound quality.

Two levels volume for option, small or maximum.

Human body induction, induction distance within 4 meters.

Using WT2003 voice chip solution, unrepeatable triggering pulse.

Standard 32Mbit SPI-flash, available to replace capacity according to customer requirements.

A and B buttons are corresponding to the previous audio, the next audio.

Power-down memory function.

Micro USB interface.

Support to replace the audio files of SPI Flash through USB interface on computer.

3 AAA batteries or USB for power supply.
 Built-in 8Ω1 watt speaker.
3. Electrical parameters
Power supply mode
DC3V~ 5V stabilized voltage supply
Working Current
Sleep standby mode
≤100uA
Playing mode
≤130mA(DC4.7V)
Audio Format
MP3
Bit Rate: 8~320Kbps
Audio Output Power
8Ω/1W(typical value)
Infrared Induction Range
≤4m(120°Angle)
4. Appearance introduction
This product is easy to use. Support voice file replacement on computer through USB interface, but not support to
read SD card. It includes a micro USB interface, two keys A and B, a slide switch.