Featuresr bluetooth headset compatible devices with bluetooth such as mobile phoner necklace style stylish of shape these headsets hang in your neck make sure no wires swing and hit the chest so no annoying noise ordragging off of the ear buds when runningr it support three way calling and multipoint connectionr built in microphone allows you to have wireless telephone conversationsr bluetooth v41 version can be simple pairing safelyr in ear design lightweight and portabler r not