Stable wireless performance for everyday use: up to 33 ft distance lets you control music and phone calls at home, in the office, or during exercise. When you remove the earbuds from the charging case they will automatically connect to your phone. Quick multi device connection and long range: the headset is equipped with Bluetooth and advanced sound processing chips using the latest technology. Connect to two devices quickly. Connectivity range up to 50 ft / 15 m; in open area up to 130 ft / 40 m. IP7 waterproof and sweat resistant: the sport earbuds are built to withstand sweat and rain during workouts. Hands calls and music on the move: enjoy freedom to take mobile calls and listen to music while driving, running and working. Use scenarios: 1) Home or office: remove from the charging case and they auto connect to your phone for easy control of music and calls. 2) Gym or outdoor activities: IP7 rated and sweat resistant, allowing you to train with confidence while staying connected over a wide range. 3) Transit and multi device use: two device pairing enables seamless switching between devices for calls and music while on the go.