Bluetooth Headphones, Grandbeing V4.0 Bluetooth Headset Wireless Sport Sweatproof Neckband Headphones [Diamond Cutting Craft] with MIC for iPhone Android Smartphones / iPad Samsung Tablet, Black Unique Neckband Design: Comfortable all-day wearing experience, lightweight and flexible, wearing like a necklace around your neck. [Diamond Surface Cutting Craft], elegant and low-profile. Symmetric buttons layout, easy for you to operate buttons in both sides. Magnetic adsorption earphones, avoid tangled wire matter. Advanced Technology: Latest CSR Bluetooth V4.0 chipest, faster connection and lower power consumption. Effective transmission distance up to 33 feet/ 10 meters (Depend on environment), allows you to hands-freely answer the phone call. CVC 6.0 noise canceling technology, ensures that you could talk clearly with your friend/family via build-in MIC. New Lifestyle between Sport and Music: The headset deliveries enhanced audio and bass response, you will enjoy great stereo sound while you are doing workout or running. Whats more, the headphones support to connect TWO Bluetooth devices simultaneously, support Answer / End a call via CALL button, support voice prompt. Long Battery Life: Build-in 195mAh rechargeable Li-Polymer battery, talking time up to 15Hrs, music playing time up to 10Hrs, standby time up to 360Hrs after fully charged. Charging time, less than 2Hrs. Fully Compatibility: Free access to all Bluetooth devices, such as iPhone 6s Plus / 6s, iPhone 6 Plus / 6, iPhone 5s / 5, iPhone 4s /4 , iPad Air / iPad Mini; Samsung Galaxy S6 Edge Plus / S6 Edge / S6 / S5, Note 5/ 4 /3 /2, Samsung Tablets ; LG G4 /G3 ; HTC A9 / M9 / M8 / M7 ; Google Nexus 6P, etc.