Genuine replacement. The integrated steel security cord is almost double the length of the old one and has 2 locks. Despite heavy usage (4+ hours / day), a charge still lasts for several days. The sound the headset produces is clear and punchy. , look for something else. - The noise cancelling is adjustable, in case you want to dial back the effect. We love this sandal! I think they are presentable for my mom now, hence the 4 stars! I tried some of the best DACs out there (most recently Sound BlasterX G6) and found for sidetone at least, there was an echo. so close.