Mpow Cheetah Bluetooth 4.1 Wireless Sport Headphones Sweatproof Running Gym Exercise Headset - Retail Packaging - Green MPOW Brand Certified: Top-Brand Bluetooth Accessories for Smartphones Cheetah's Fashion Streamline Outlook and Comfortable Design Ensure A Fashionable and Perfect Experience. Enjoy CD Quality and Rich Stereo Microphone/Listening Sound Wirelessly with Bluetooth 4.1 Tech and APT-X. Behind-Ear Ergonomics Design Guarantee 100% Stable when Exercise, Running, Climbing, Driving, Skating, Camping, Fishing and other Outdoor Sports. Extra-long Battery Allow You Enjoy Up to 8 Hours Talking/Playing Time.