I have gotten a couple of these as OEM versions for pretty cheap, and i really like this product. The flip open boom mic allows me to keep it off when im driving, and when someone calls, all i need to do is open it up and put it on and it automatically connects the call and is recognized by my iphone as the default audio device. I really only use it in my car, but the volume buttons work well and the battery does not need to be charged that often.