I'm an ex-kickboxer, and I wish this smart heart-rate sensing mouthguard had been invented years ago
I'm an ex-kickboxer, and I wish this smart heart-rate sensing mouthguard had been invented years ago
Wed Oct 30, 4:24pm UTC
https://www.techradar.com/health-fitness/im-an-ex-kickboxer-and-i-wish-this-smart-heart-rate-sensing-mouthguard-had-been-invented-years-ago