This headset came free in the box of my V635 but would make a great addition to the A630/MPx220/V710.Not much to really say. Its nice and clear for a pair of earbuds (my phone lets me play 192kpbs mp3's on it), and I actually use my phone as an MP3 player because I can hold like 60 songs and still have room for a bunch of pictures and games.My only complaint is I dont like the earbuds that are short on one side and long on the other... I prefer the equal-length cords.