Even though I listened to the reviews and bought a smaller size since they fit large, the elastic part that goes around the foot and ankle is way too stretched out. One call took place when the air-conditioner was ramping up (just started car, it was 91+ outside). theres a sound cone, and if you talk to the side of it, obviously no ones going to hear you. After that, it stopped working. Tangle free cord! The smell is pleasant and as long we do the ear cleaning of our large dog outside, not too messy. I was in no way solicited for this review. When walking, my heel slides out of the back but I think thats what its supposed to do. But the case came in broken. Muy bonitas y cómodas.