This pair of stereo headphones from Porodo offers AUX port compatibility, a high-clarity microphone, clean sound, and a 3-button control with quick commands. The three buttons on these earphones can be used to adjust the volume; one of the buttons lowers the volume, the other raises it, and the middle button pauses the music or lets you answer or end calls. The Porodo Stereo Earphone features a 3.5mm AUX connector, enabling it to be used with any device that supports AUX connectors, in addition to smartphones. This earphone measures 1.2 meters, which is the standard and average length for all earphones. This earphone is made of ABS, or Acrylonitrile Butadiene Styrene. ABS provides a good compromise between its resistance to impact, heat, chemicals, and abrasion, as well as its dimensional stability, tensile strength, surface hardness, stiffness, and electrical properties.