Our Sport Wireless headset adopts innovative neck-band and magnetic design. The comfortable neck-behind wearing style provides a comfortable fit and three-button control. The built-in magnet attracts the earplugs when you don't need them, thoroughly eliminating the burden on ears. Additionally, the Wireless 4.1 ensures crisp, skip-free stereo sound. A good choice for music or sport lover. * Crystal Clear Sound - Wireless V4.1 technology and dual drivers can produce crisp and high-quality audio.