The Plantronics Explorer 330 fits snugly on my ear but hurts my ear by end of day. Easy to pair with my Samsung Cell. The one button works well to turn ON, OFF & set the Heatset Volume. No complaints with those I communicate with & I can hear voices clearly. This was a good value for me. No need to buy any head set more expensive. A good buy if it is recommended for your Cell. Enjoy.