Sport Headphones Bluetooth, Macoku Sweatproof Sport Headset V4.1 Wireless Stereo Bluetooth Earphones In-Ear Noise Cancelling Earbuds with Microphone INCREDIBLY COMFORTABLE - The uniquely designed ear hooks form around your ears ,best ear-design, means whatever the intensity of your workout you will get the perfect fit. It will stay firmly and comfortably in place HIGH-FIDELITY STEREO MUSIC AND CLEAR SPEECH-You can begin enjoying CD quality stereo sound instantly within 30ft. Bluetooth 4.1 technology delivers astonishing acoustics, with that deep bass you crave NOISE CANCELLATION - Built in Microphone and adopt the most advanced Bluetooth CVC noise cancellation, makes you enjoy a clear sound even through you are in a noisy environment WATER -RESISTANT DESIGN & EXERCISE-PROOF - Guarantee 100% Stable and Comfortable User Wearing Experience for Running, Jogging, Biking, Driving, Fishing, Camping, Hiking and other Outdoor Sports EXTRA-LONG BATTERY- Allow you enjoy up to 8 hours working time. Compatible with iPhone, Android and most Bluetooth devices, Compatible enabled devices for music/audio streaming and to answer phone calls with built-in microphone