Griffin very good products I own. Received recently, I have used several times on my Iphone and I am very satisfied. The sound is good even with the window open (Not having air con, I do not have a choice: p). the USB socket can charge my iPhone or other product. Double features. Only negative (and especially due to the version of the iPhone), the jack is not fully seated on the plug, but it is known bp iPhone 1st generation where decision is rarely compatible with non-Apple Headphones.