If youre looking for a simple mono earbud for Bluetoothless use of your Droid 2 Global (my specific phone) in a car, this is not your headset. When not on a call and you press the inline microphone button, it will play your next "music" file. When not on a call and a call comes in, pressing the microphone button will, you guessed it, play (or pause) your music.. but it will not answer the call. So it requires you to still handle the phone to answer the call. On the plus side, its cheap enough that its really not worth sending back. Im still looking for a good mono earbud headset with inline mic *and* call answer button. If thats what you want too, and if you have a Droid 2 Global, this is not the headset for you. I dont know how it works on other phones.