1. Metal housing headphone with strong bass-driven stereo sound. Passive noise isolating earphones provides good listening experience and clear calling. 2. Built-in Microphone, convenient hands-free calling, answer, reject and end calls directly with the earphones. Volume up, volume down, pause, play. (Not for ios devices). 3. Comfortable ergonomic in-ear design with soft silicone sweat-proof eartips reduce outside noise, so you can enjoy music on the go. 4. Compatible with all 3.5mm audio cable jack smartphones and devices. 5. Compact and light design, easy to carry
