Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear_x000D_Precision german engineering ensures excellent audio clarity, so you will hear every detail of your music._x000D_One button inline smart remote makes it convenient to play and pause music and take calls without needing to fumble with your phone._x000D_Four sizes (xs, s, m, l) of ear adapters are included so you can get an individualized fit for personal comfort._x000D_In ear design creates a secure fit for excellent reduction of ambient noise so you can relax and focus on the music._x000D_Connectivity technology: Wired_x000D_Connector type: 3.5 millimeter Jack