Electronics123.com, Inc. SmartSound PIR Motion Activated Audio Player

["Adopt passive infrared sensing technology. The detector/sensor can be rotated 60° at both left and right sides. Can change sound contents at will.","Support memory function when power-off. Support to play MP3 audio files with high sound quality. Automatically trigger to play sound back.","Built-in SPI flash (4MB) as the internal memory Adjustable volume level from 1 - 8 by pressing button B Select the sound file by pressing Button A","Check description below for instructions and datasheets!","Skill Level : Assembled and Tested"]