Its call quality is awsome. I finally ended up trying hers on, and fell in love. So, I probably wont be able to give an opinion on hoe reliable they are. Also get sore balls of my feet and these boots have proved to be very comfortable. It?s very disappointing to read positive reviews about the sound only to hear the bass on some tracks cause heavy fuzz/static so casually?even considering these headphones already are quiet. Otherwise they do look nice and are nice and solid/heavy. The realy BAD it sounded like a blown out Krako speaker in an Aries K car. I have wide, high arched and achy feet, and these shoes molded to my feet and feel soft from the first time. But I feel that with time it will somehow break. After searching for a bluetooth speaker that had a weather-proof design with a decent sound I decided on the Trelab FX100 and have been very pleased with it after several days of continued use.