My only complaint is they constantly disconnect. Excellent seller communication. Received these today & look at them. I love these slippers, super comfy and soft and pretty. Llegaron dentro del tiempo estimado de entrega. Für die blaue LED Beleuchtung, welche einen tollen Effekt bei abgedunkelten Räumen macht, muss zusätzlich der USB Stecker angeschlossen werden. The upper is a stretchy black material so your foot easily slides in and out of the shoes, yet once your feet are in them they feel secure. I wouldn?t recommend these heels if you had to be on your feet a lot. I love the fact that this pad allows me to bear the weight on my pelvis more comfortably so I dont have to rush through my workouts because of the pain. Lo quería para no tener que meterme unos auriculares en los oídos y con este aparato lo he conseguido, pero a un precio bastante elevado, creo que su precio justo estaría entorno a los 120 euros, pero me he dado un capricho.