Importer520 Stereo Handsfree 3.5mm AUX Cable with Microphone and Phone answer button For HTC One M7(AT & T, T-Mobile, Sprint) - Black Brand New Product Importer520 is a registered trademark Gold Plated 3.5mm male jack on each end with an in-line microphone Play stop music and answer end calls with the On/Off button Universal with any portable device with a 3.5 mm jack. Doubles as an AUX cable for high quality audio Incoming call pauses the music on your phone and sends call to your car's speakers