The SCOSCHE music Bluetooth 4.2 earbuds are the perfect solution for those looking to get away from the standard, plug-in ear buds. Wirelessly stream music from your smartphone to these Bluetooth enabled earphones, up to 33-ft away. The high-efficiency, dynamic drivers, provide full-range acoustic reproduction. Don't let yourself get tied down to your portable Bluetooth device with a limited range. With these, you get plenty of battery power to use them all around the office, during a workout or out on a walk when you need portable Bluetooth earbuds, as your companion. They also provide up to 300 hours of standby time and put you in full control, whether it's making a phone call or controlling your music, using the built-in mic and remote for seamless user experience. Certified IPX4 rated to keep the call earphones protected from sweat and splashes of water. The LED indicator on the corded earphones flashes repeatedly blue during pairing, once every second when connected to another device, then turns solid blue once the battery is fully charged. It also flashes red when the battery is low and then turns solid red to indicate the battery is charging.