It features BT 5.0 technology, convenient for you to connect it to your smartphone, with CVC noise-canceling mic, the earphones get rid of static and environmental noises during phone calls, so that you can have clearer and more stable calls. | Top grade loudspeakers, giving you all-around stereo sound, perfect for playing games. | When connected to your phone, the battery capacity of the earphones will be shown on your phone so that you can know when to charge your earphones easily. | Made from qualified metal and silicone material, it's dust-proof, sweatproof and waterproof, great for your daily use. | Ergonomic and magnetic design, lightweight and very flexible, can be bent to any shape, easy to store.