As I just stated, this device following the directions in the PDFs, will not sit in the proper position on my neck. I have tried numerous times and the electrodes will not touch. The only way I can get it to make contact is if I take a bandanna/towel and wrap it around my neck. In addition to this not fitting properly and seeming to be a one size fit all unit, the audio on the device is garbled and the only word I can make out is acupuncture. Other than that, the sound/words are unrecognizable.