The Bragi B52-500-01-01 In-Ear Bluetooth Wireless Headphones allows yo to connect to any Bluetooth device running A2DP for a crystal clear stereo sound and hands free communication. With the integrated Knowles Balanced Armature Speakers, these headphone provide a rich, dynamic experience immersing your in the world of music and entertainment. These dynamic headphone have three button integrated to allow you to control your music and entertainment quick and easily. by pressing the select button on the bottom once, you can play, pause, or accept a call while pressing twice takes you to the next song and three times to go to the previous one. Press and hold the volume button to turn on the Audio Transparency feature to give you the best audio quality. Find your size in adjustable ear tips with small, medium, or large to give you the best fit and comfort while your rock out to your favorite jams!