at first, try to see the inner problem as told by Lane if the problem is still there then it must be a malfunction issue. Whenever you buy these headphones after using it, put the headphones inside a pouch as they are too much sensitive. Jabra 65 t came with a spare pouch try to use it, might help you. [br]
https://www.thetelecomshop.com/au/media/catalog/product/cache/9cd8ad701df57b45fe03cf4988b4e1eb/image/201023ecc6/jabra-10-pcs-spare-pouch-14601-03-for-evolve-65t-jabra1460103bn.jpg