Mild-proof and sweatproof design, while sporting while listening to music although in the rain or sweating. Magnet Human engineering design and high-quality materials make the headset comfortable for daily use. Portable and lightweight design, with very easy to store in your bag. With CSR4.1 audio decode technology, offering you perfect sound. Voice command for picking up / rejecting calls. Control music and calls from the headset. Allow you to answer the phone anytime and anywhere.