Bluetooth Headphones,Winstion Runner Headset Sport Earphones with Mic and Lifetime Sweatproof Warranty - Wireless In-Ear Earbuds for Iphone,Android Smart Phones, Bluetooth Devices HD SOUND - 10mm Speakers combined with Bluetooth 4.1 create super accurate HD sound with powerful bass. SECURE FIT - The special Behind-The-Head wearing style holds your Buds in place during rigorous workouts.The flexible Memory-Wire adapts to the size of your head and helps provide a perfect seal for a better listening experience. MICROPHONE - The built-in microphone makes it possible to use the headset for Calls.The headset reads out the callers number when a Call comes in, and the Audio you were listening to is silenced.When you hang up, audio starts back up automatically. Long battery life, let you enjoy your music through a variety of activities. Compatible with most Bluetooth-enabled Smartphones.