No more cables

See video on Amazon.com I chose this helmet mainly for its Bluetooth and is perfect for use that I made. I use it morning and evening to listen to podcasts and music on the subway going to work. There are certainly more high-end headphones with more functions (eg noise reduction) but you have to pay more and I do not want to.

For music, it is clear that loses quality with Bluetooth and to be honest I've never tested the headset by plugging the cable Jack-Jack. I do not know what it is wired but what I wanted with this helmet it was just not having a cable node into the bag.

There is one thing that I find harmful, it is the absence of lock button. It may indeed happen that the headset turns itself if it is a bit compressed in such a bag.