✬Pure and Excellent Sound: Built-in high-performance speaker extends frequency range and lower distortion. Featuring a specialist design crafted to mould alongside your ear canals, the optimized noise reduction eartips eliminate surrounding noise to give you best listening experience for music, video or phone calls. ✬In-line Remote Control: Built-in controller allows you to adjust volume, skip and pause tracks, even take and hang up phone calls, so that you can complete a variety of essential functions without touching the devices. ✬Comfortable and Convenient Wearing Experience: Ergonomic and comfortable in-ear design effectively prevent falling off. Extra two pairs of soft silicone eartips of different sizes (S＆L) for personalized fit offer secure replacement and lasting comfort. ✬Comprehensive Compatibility: Compatible with a range of electronics devices, you can use this wired headphones on iOS or Android smart phones, laptops, Windows devices and other devices equipped with 3.5mm headphones jack.  ✬Light and Portable: Our earbuds are deal for taking a bus, climbing, chatting, working and other occasions.