Featuresr bluetooth headset compatible devices with bluetooth such as mobile phoner built in microphone allows you to have wireless telephone conversationsr support hang up the call refuse the call phone callsetcr with blutooth 30 can be simple pairing safelyr the k2 is a perfect headset to help you keep your hands free whether you are working in the office or driving in your carr in ear design lightweight and portabler r noter the best distance of product working is less than 1