Every time when I enter a shopping mall, I can hear many different promotion voices from the stores. A clear and loud voice always arouses my desire to buy something. A simple audio player can achieve this effect.
It has 4M memory, it supports MP4 audio that is about 4 minutes.
5 volume levels are adjustable, max volume is 90db.
Sensing Distance: Left and right sector 120°, the angle between the top and bottom is 60°.
2 power supply modes are optional: 3pcs AAA batteries or 1200mAh rechargeable battery.
Connect the player and computer with the USB cable to upload audio messages.