Who would have thought that you need motivation to watch TV? Strap the Entertrainer monitor around your torso and wirelessly connect to the TV. The gadget works by monitoring your heart rate; if you don't work hard enough it'll turn the voume down and if that isn't bad enough, if you don't get back to it, the TV will turn off altogether. This fitness device could be just what telly addicts/ couch potatoes need to keep fit. Cruel yet so, so good. Retail is around $139
Product page [Via Gizmodo]
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