PIR Motion Sensor, Pro Edition with Multi-Track feature, download your own MP3 files, Play speech, music or sound effects by Talking Products PIR Motion Sensor that will play MP3 sound files after sensor activation. Includes Multi-track playback feature. Upload your own MP3 voice messages, music or sound effects. Your MP3 sound file will playback automatically after the PIR sensor detects movement. Create an audible caution for a hazardous area or offer support with step by step instructions to assist people with Dementia and Alzheimer's. Use as an audible security alarm. Raise attention and create impact by adding a speech, music or sound effects to a point of sale display.