I use a Plantronics headset at work and enjoy the freedom it gives me to listen to clients and trade at the same time. So when I found out about this product for cel. phones, I was eager to try it out.Firstly, I'm using a Motorola Razor. My last headset was also by Motorola and I found it quite fragile. The Voyager 510 is sturdy and functional. The battery lasts forever. This morning I made a handsfree call from downstairs while my phone was upstairs! No problem!! It looks big and bulky, but it's actually quite light and easy to forget when you're not using it. Just find the right earpiece for you out of the 3 provided.The only quibble I have is with the power button which, as others have noted, is tiny and difficult to press. I power on and off while it's still in my hands but even then, I think children would have an easier time activating it with their small fingers.Buy this one with confidence, you get a good product.