1. Long-lasting comfort with an ergonomic half-in-ear design 2. Multi-function in-line control with two buttons 3. Extremely sensitive microphone for a clearer singing and calling experience 4. Plug-and-play, wide compatibility, 3.5mm metal plug 5. 14.2mm large speaker, strong super bass, clear vocals 6. A free PU carrying case that is convenient to carry and store 7. 1.2m of durable, tangle-free pure copper TPE cord