Five stars. Lets be honest, nobody should be buying this for anything other than as a headband for the Koss KSC75. It does wear and tear a lot but nothing beats the comfort it provides to my feet. Its not cheap as a charging cable. The rack was shipped in the manufactuers packaging which was sufficient. I walked all around Paris for hours without my feet hurting. It makes my gym much more enjoyable. Reenviei, solicitei o reembolso e ainda não me responderam sobre nada. Sound quality is good and battery life when using bluetooth is also good. That latter fact by itself earns it a 5-star rating.