The perfect complement to your Smartphone. No need to sacrifice quality as you can still experience BIGGER SOUND at lower volume with MG5 proprietary miniature Loud Speaker (10 mm dynamic drivers). These mobile features allow you to answer the phone, pause, mute, song index (fwd. and back) your music so that you never miss a beat with your busy schedule. . With full packaging, this Studio Quality, Ergonomic "stay in ear" mobile design easily out performs competitors at twice the cost.