SteelSeries Arctis 7 Review @ Vortez
 

The main party piece of the Arctis 7 is that it features lag-free wireless connectivity of up to 12m, with a 15 hour battery life. Gaming headsets, especially of this calibre tend to have a 10-20hr battery life, which isn't very long comparatively, though this tends to be entirely down to the size and quality of the drivers used.

https://www.vortez.net/review.php?id=1301