These are part of the V-Cast Music Essentials kit and are are worthless if you want to use them anyplace that has any ambient noise. They seat in your ear worse than iPod headphones, which makes it impossible to use them on, say, the bus. What they were thinking, I'll never know. Somone is going to make a mint making in-ear adapters; Motorola would be well advised to just offer a microphone/clip thing you can plug a pair of decent in-ears into.  In the mean time, save your money.