This H610 bluetooth headset is been designed to give maximum comfort of all kinds to whoever that wears it. it can at all times be used in answering calls and as well be sure of voice clearness as it is built so. this also gives you the edge to listen to your musics through the bluetooth device without having to bother about carrying your phone on your palm always. so once connected to any bluetooth enabled device whatever voice(s) transmits through it. Perfect for all bluetooth devices..