Enjoy TRUE HD SOUND: These wireless headphones comes with Bluetooth 4.1 CSR technology, delivers superior sound quality and power to move you. Enjoy guitar solos, treble and strong bass like you're listening live. Combined with a IPX4 Sweat/Dust/Splash Resistant design, these elegant earphones bring the beauty of music into your everyday life. Whether you’re out for running or on your daily commute, These wireless earphones deliver outstanding signature sound to suit your current activity. Submerge yourself in the limitless world of sound with the latest in Bluetooth innovation