That shouldnt happen after only about 4 months of use. I can never struggle to hear where people in the game. Ive had many ble enabled devices in the 100 dollar range work flawlessly with dual device pairing, alas the MX4 cannot deliver a well rounded device, but it can do good noise cancelling at the cost of doing it with some quality assurance in which two devices Ive seen from the MX series have failed. They sync up in stereo with no issues. fit is a little wide, even for my wide footed 4 yr old. I can not get the noise canceling test to say a good seal. I hate inner earphones, but need both. Dieser war dann VIEL zu gross und zu weit. As I intend to use these solely for mellow indoor cycling, they seem to be a good fit. They are comfortable and they are keepers.