Use the Motorola Micro USB to 3.5mm Audio Adapter to connect your phone to any external headset or speaker with a 3.5mm audio input jack. Simply plug one end of the adapter into the Micro-USB port on your phone and plug your favorite headset or speaker into the 3.5mm audio jack (female), and you're set! The Motorola Micro USB to 3.5mm Audio Adapter makes it easy to listen to the music on your phone, even if your phone doesn't have a 3.5mm audio jack.