Bluetooth Headphones,AELEC Updated QY8 QY11 V4.1 Sweatproof Sport Earphones Wireless Headsets Noise Cancelling Earbuds for Cycling Driving for iPhone 7 Upgrade version of QY8: aelec QY11 is equipped with Bluetooth 4.1 + EDR APT-X audio decode technology along with CVC6.0 intelligence noise reduction system, brings you wonderful acoustic bliss. Convenient combination: Built with flexible, stabilizing ear hooks, these Wireless earbuds can be adjusted to fit anyone comfortably and securely through even the most vigorous physical activity. Thanks to Bluetooth 4.0 technology, and an advanced antena design, these Earbuds will leave you free to enjoy your favorite hobbies without being tethered to your phone. Strong battery endurance: High quality polymer 80mAh battery with professional energy saving design prolongs play time up to 5.5 hours of continuous use on a single charge, along with fast charging time and standby time for 180 hours User-friendly design: 3 different sizes of ear-tips to fit your ears perfectly and securely 100% Sweat-proof: designed for fitness enthusiasts who enjoy both music and sports. All aelec products come with life-time hassel-free warranty, along with friendly customer service.