The headphones slip easily right in. O-rings are REQUIRED, and unlike the G710+, this does not come with them. Carefully using something like a popsicle stick (or other small dull narrow ended object) can help with this. I originally wrote a two star review because after swimming with these I could no longer connect them to a computer to add/remove music I had put on them. is it worth the price? No. I hope they work. Talla perfecta y son increíblemente ligeros como una hoja de papel, protegen bien los tobillos (recomiendo usarlos con calceta gruesa para evitar roces en la planta del pie) y tienen buen grip, permiten el movimiento de piernas y como la tela es delgada son muy frescos. You?re going to love these more than the Apple ones we all settle for but they sound better and the price is substantially similar to Apple air podsBattery life holds what?s more than a normal full working day for me and I normally only have to plug the charger case in once a week. They arrived and I am totally pleased with the shoe. One of the tie downs broke on our first trip out, but we recovered the hook from the road,and tied it back together.