The holder was easy to assemble. It can be a little bothering over the big toes. We watched all of our friends hobble into the water audibly "ouching" every time they got in and out of the water. Earbuds are nice and pair really fast so there is no wait to start listening to your music. Im probably just unlucky with a bit of a dud pair but its enough to put me off. El sonido, bueno hablamos de Sennheiser, una marca que por si sola en el aspecto del sonido no necesita publicidad, el sonido es increíblemente limpio para unos audífonos tan diminutos claro no esperes el audio de unos HD800s pero es bastante decente. I got these shoes for my peloton and I love them! When I buy online its sometimes a hit and miss but mostly a hit. Delivered on time and as represented. I must say, they live up to hype.