IMEEK Running Headphones - Bluetooth Wireless Stereo Noise Cancelling Earbuds with Mic - Great for Sports Running Gym Exercise(Black) Great for Exercise and Running: the running headphone is perfect for sports and workouts, as it's 100 percent sweatproof Hi-Fi Stereo Sound: built-in HD microphone with CVC6.0 noise cancellation, ensure Hi-Fi stereo music sound. Quick and Easy Pairing: just push the button on the right-hand earbud and give it about 5 seconds the first time, your phone will discover it right away. Long Range Bluetooth & Play Time: up to 8 hours of music playing time and up to 30ft bluetooth operating range. Full Device Compatibility: the headphone is compatible with all bluetooth-enabled devices.