Consumer vibrotactile sensory substitution wristband

Everything known about it is 16 men rating themselves 12 points better after six weeks, with nothing to compare them against.

Who it's forAny man who's started missing consonants in a loud bar after years of loud gyms and gigs.

Emergency: call 911.

I am not a doctor. This is not medical advice. This is self-education. Talk to a physician who has your history before you change anything.