Nv-gu Bluetooth Headphones, Wireless 4.1 Magnetic Earbuds In-Ear Stereo Earphones Running headsets,IPX4 Sweatproof Secure Fit for Sports with Built-in Noise Cancelling Mic (Black) 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 4.0 technology delivers astonishing acoustics, with that deep bass you crave NOISE CANSELLATION - Built in HD 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 6 hours working time. Adjustable clip. One paired two,which compatible with iPhone, Android and most Bluetooth devices