Didn't like these at all, first time i buy Blue Tooth earphones, i rapidly sold them. I was very disappointed with the ANC technology, these technology can't really work btw, sound will always penetrate mechanical by the buds but i thought if for ex. i clap my hands: the ANC technology would recognize that and do its work, nop it doesn't do that. I have a pair of Sony MDR-EX650AP which do a better or as good job at keeping external sounds out. I tested the Blue Tooth (LDAC mode) with a Flac 96kHz 24bits (Handel, Serse), moving to the bathroom (2-3 meters from the phone, door opened), the listening experience was not impossible, it couldn't handle the file's resolution nor the high pitched female voice (the plastic encasing would vibrate). The sound of my Sony MDR-EX650AP is superior.