Convenient & Comfortable: Your Secret to Effortless Chatter - WT016-K Upgrade to in-ear speakers，Uses Left ear and right ear-hook eardrum,To hold down the call button to call! Slip on these bad boys and let, Check! They're so light you'll forget you're even wearing them! Perfect for those marathon chitchat sessions. Stay connected in style! Works great for all you need,hunting，in the Restaurant, down on the Farm, Caravanning with your team.Working for a long time won't hurt your ears。