HiveTech Bluetooth 4.1 and NFC Music Sport Headset, Wireless Bluetooth Stereo Headphones Sweatproof Earphone for iPhone 6 6 plus and Android Cell Phones (Orange) NOISE REDUCTION: Reduce noise, wind and echo with CVC6.0 Digital Noise Reduction Technology BETTER SOUND QUALITY : Full range audio spectrum for deep bass ,all the way to crystal clear high frequencies of music or phone calls SUPER COMFORTABLE::With this headset, you are totally hands free when doing exercise without wires ,Your ultimate comfortable choice for wireless music and call when training ADVANCED BLUETOOTH TECHNOLOGY:Upgraded from 4.0 to 4.1 with CSR8645 chip FOLDABLE and FLEXIBLE: The Flow headset folds up for easy transport and storage anywhere you want by special material