I like these alot. I tried using plastic wrap and rubber bands but it still leaks. The silver clasp piece started becoming stiff and had limited functionality after about a month. Left it connect for a couple of hours. Super cute and my daughter loves them, but the entire bottom detached from the slipper and they were barely worn. I’m not returning them because we are in the process of moving and don’t have time to deal with it. A few years ago I bought a pair of mid-priced UE earbuds and was blown away by the sound quality. My cost is around $260 for shoes that do NOT fit ! I use a sound designs Mixpre 3ii because it is one of the quietest prosumer level sound recorders out there. It is not ACTIVE noise cancelling.