This is a wonderful product especially for the price. Beware of these issues though: The prongs used to insert into the pop-port are somewhat fragile, so be careful on insertion and removal. I received 2 defective headsets before getting one that worked flawlessly. The first had a mic defect and had a volume adjustment defect. The second had a prong that broke rendering the product somewhat useful but severely compromised it to the point where I didn't want to use it anymore b/c it would unattach itself during calls and while listing to music it There is some interference from the phone while on call, this is infrequent but could be a concern. Other review state that the earbuds do not fit well, I haven't experienced this problem.Positive aspects are: it improves safety while doing activities such as driving, cycling and it can even be used running ( I have done this although the phone is a bit more heavy than a normal MP3 player). Sound and voice quality are exceptional. End/answer/adjust volume/change song and voice dial all while having the phone remotely located. The volume level (high) is satisfactory for me as well.Recommendations: Buy 2 at a time to minimize the chance of defect and accidental breakage. Great Product, at least worth a try.