This is an electronic device that you put on your neck to stimulate the vagus nerve. It is used to treat migraines and cluster headaches.
I used it several years ago for a month and then put it in storage. It didn't work very well for me, though many people swear by it. It's in like-new condition.
It's a bit like a prepaid phone service. It requires monthly usage cards that you purchase from GammaCore.
You can pick it up in Yucca Valley. Or I can deliver it in the Palm Springs area for a $20 fee (covers my gas).