My jawbone is missing

Jawbones. You know the cool blue tooth headsets that actually work and may prevent you from getting brain tumors from your cell phone (they don't promise this value prop -- I've just assigned it to them). I love these devices and so do many other people. My problem is I can't seem to keep track of them. I'm on my third one and I can't find it. If you find it, please return it to my desk. Thanks.