ELZU.US [NEWEST 2018] Bluetooth Headphones w/12-14 Hours Battery - Best Wireless Sport Earphones w/Mic - IPX7 Waterproof Music In-Ear Earbuds for Gym Running Workout Noise Cancelling for Men, Women Built-in Bluetooth, ideal for any Bluetooth audio device Exceptional sound quality with Extension Resonator for bass enhancement Dual Speakers for improved stereo sound High capacity Lithium-ion battery for play time up to 8 hours per charge Compact size, Black finish