Has saved me wetting my pants a few times, so worth it. I had my phone in the living room and walked to my bedroom bathroom, which is about well over 30 feet away and through 3 walls, never did the sound break. A bluetooth device should easily pair. Low-to-no maintenance - would be a good idea to wipe it down occasionally to remove sweat (salt) deposits. I bought these thinking theyd be just workout headphones but they replaced my over ear headphones for listening to music. I’m disappointed. I’ve tried a few of these platform sandals and none are as comfortable as these from Dream Pairs. This 👟 is very comfortable & cool. Docking a star for the heavy handed DSP being used but if an update brings the ability to go into an advanced mode Ill change that. Took a star off because my product arrived damaged.