Wings2 are over-ear headphones that are specially designed for sports. With the ear-hook semi-in-ear structure and weight up to 0.77g, you can deeply enjoy the training time with comfort and security. Just adjust the 210° rotatable ear hooks until you find the perfect position for your ears. Also, the headphones are IPX4 waterproof, meeting your outdoor sports needs, such as running, cycling, hiking, etc.