do not buy these headphone unless you want to keep return they every 2 month . the first pair I buy work great for two month . then they would not turn on after be charge . press the reset button as recommend by support do not work to revive they . I look in Logitech 's support forum and find other people with the same problem . Logitech take the headphone back and send I another `` new '' pair . it be two month later and guess what ? the new one have stop turn on after a charge . I really love the convenience of these headphone . the sound quality be great and not have the cord get in the way during workout or yardwork be so nice . but you really do not buy they , you just rent they for $ 100 plus the every-2-month cost of mail they back and the cost of replacement while you wait for Logitech to ship you a work pair . I want my money back .