Have used it for several months & full of glasses! Apropiadas para correr en pavimento I dont have enough money to buy them again. B- In fact I like them so much I ordered a pair in black. Great product, durable and flexible. The Xtreme 2 sounded exceptionally bright, which might be good for casual music listeners who don’t give much attention to music, but for me, it was a deal breaker. Overall Im very happy, I was concerned about all the poor reviews regarding comfort and the cupsize but I found them perfectly fineThey do get warm after a while of listening but I normally dont go for closed cup for that reason, so it was expected for meMy only complaint is that they dont work while plugged in charging, so IV had a few occasions where IV had to stop what Im watching to wait for them to charge They are comfortable, but they dont last. Easy to clean from bugs when I got home too.