Im really happy with this product! Once I got everything tightened, the rack is very sturdy. All these things are easy to forget about before you order this. Traumhaft. I use this for my laptop to game and rather using the blutooth option I use the wire for just slightly less latency and the light always flickers like its going to die after 5 minutes of use on a charger. I use them 24/7 perfect with fuzzy socks if you’re always cold like me, I’m always excited to wake up and but these on :) amazing quality, right size, and the case it came with was super cute and reusable! So, I just got back from a 4 hour "moderate/difficult" trail hike near Tucson, AZ. Good highs and lows. And charge time is pretty much the same as with the Fly 9 (3 hrs). 1 Star for begging for reviews.