Ergonomic Earhooks for Sports, Ultra Lightweight: You may worry for hurting ears if wearing too long, while the running headphones weighs only 4g with soft, flexible and secure-fit ear hooks that gently touches your skin. Sports wireless headphones bluetooth use 3 pairs of eartips made from soft silicone ensure your bluetooth earbuds stay comfortably firm in place. And this sport bluetooth headset make an ideal companion while jogging, gym, yoga and more sports.