MYO by Thalmic Labs

The MYO armband lets you use the electrical activity in your muscles to
wirelessly control your computer, phone, and other favorite digital
technologies.

You can control presentations, video, content, games, browse the web, create
music, edit videos, and so much more!

$149

Myo website
https://getmyo.com/

Thalmic Labs
https://www.thalmic.com/

Wearable Gesture Control from Thalmic Labs (video 1:25)
http://www.youtube.com/watch?feature=player_embedded&v=oWu9TFJjHaM

A Biometric Controller That Converts Muscle Twitches into Digital Actions
http://www.fastcodesign.com/1672423/a-biometric-controller-that-converts-muscle-twitches-into-digital-actions#1

Submitted by Jules Sherman