Hi-Fi Stereo & Advanced Noise Cancellation - The Moman RS-S Bluetooth headset for motorcycle riders produces quality Hi-Fi stereo sound with a 40mm high-fidelity speaker, providing rich, immersive audio for music and FM radio. IT has superior battery life of 28 hours continuous use and is waterproof, dust and sand proof. It uses superior noise cancellation technology to efficiently minimize wind, engine, and background noise, ensuring clear communication in any scenario. Whether you're on a long ride or listening to music/FM, you'll have a great audio experience with no disturbances. Please note - RS-S does not support intercom function and cannot interconnect with other models of Moman.