"The JayBird JB-200 is said to be the stay-put, out-of-the-way Bluetooth stereo headset for those that have active lifestyles. The headset is water and sweat resistant design that comes backed by a LIFETIME warranty against sweat. If you like to work out and don't want to worry about killing your Bluetooth stereo headset the JayBird JB-200 might be what you need. "