Don't forget when you change earplug! Jun 8, 2016 10:55:49 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by admin on Jun 8, 2016 10:55:49 GMT When you change the earplugs, 2 little arrows help you to place correctly the earplugs.These arrows have to be aligned.Otherwise, the wings on the earphones won’t let charging the earphones.