Very comfortable and practical helmet
I use these headphones on a daily basis in a professional context and they're perfect for that purpose: so light you forget you're wearing them. It doesn't cover the ears, so you don't feel any heating in the ears. The sound quality is good for telephone conversations and music. The people I'm talking to can hear me perfectly. The function keys are easy to use. It easily lasts 2 days of continuous use without recharging. In short, a must-have!