Voc Rehab will pay for a stuttering device, which one?

Voc Rehab will pay for a stuttering device, which one? I am working with the Vocational Rehabilitation in my area to find a career job due to my ADHD and NVLD. I had an employment evaluation to see what kind of jobs I would be good at and accommodations if any and the report says I could benefit from the Speak Easy Device.. I've read reviews on how some people didn't have luck because it wore off but since the device is being paid for, I figure it might be worth a shot. Perhaps I would just use it for Job interviews and important events or something.. I'm wondering if there are better devices as I might be able to get them instead.