Superior Sound Quality: Tuned driver, CSR chip delivers HD stereo and superb bass sound. Bluetooth 4.1 and CVC6.0 noise cancelling technology with built-in mic for clear and stable phone calls IPX7 Waterproof: Interior Nano coating effectively protects sport headphones from sweat and ensures a guaranteed life span, Great for Running, Jogging, Hiking, Biking, Gym, etc. 8 Hour Battery Life: Built-in lithium polymer battery. Only 2 hoursƒ?? charge gives up to 8 hours of audio; headphones battery capacity is displayed on your iPhone One-Button Control: Get full control over your music (Play/Pause), manage incoming calls (answer/end/reject) on your phone with one-button control on headphones Comfortable and secure: ergonomic design, equipped with three different ear tip sizes to ensure long time comfortable wear. Neckband design, no wires to get tangled What You Get: 1x Bluetooth headphones, 1x Carrying case, 6x Ear tips, 1x Micro USB Charging Cable, 1x Wire clip, 1x User Guide. ƒÏCustomer Service: 24-7 email reply, 45 days replacement or refund, 12-month warranty