Cleartone Acoustic Strings featuring the finest Phosphor Bronze available for the warmest and brightest resonance on an acoustic guitar. Super-high tension winding over a hex-core is used to maintain tuning consistency throughout performance duration. EMP Treatment is then applied to all the strings (including the plain strings) to ensure longest tonal life without compromises. What Makes Cleartone Strings So Special? Coated strings last a long time, but up until now, sound terrible. Uncoated strings sound great, but lose their tone quickly and with oxidation, are more susceptible to premature breakage. Cleartone Strings with EMP have the thinnest coating ever applied to guitar strings and the most durable. Cleartone's EMP Coating is approximately 1 micron thick. In comparison, Cleartone Strings are 1000 times thinner than any other coated string. Plus, because of the uniqueness of EMP, the protection actually bonds to the molecules in the metals so nothing flakes of during hard strumming and no dull or muted tone. What is EMP? EMP (Enhanced Molecular Protection) is Cleartone's patent pending procedure that helps prolong string life. EMP protects strings from the elements such as your body pH, elements in the air and on your hands. If you take a set of Cleartone and a regular string, hang them both outside during a rainy day and see what happens after just one day. If you really want to see a difference, check them out after a week, or even a month. What you will find is that Cleartone stays fresh and clean, like it would on your guitar and the regular string will be covered in oxidation. That's what EMP is all about; Cleartone's way of saying, "Go on, you can play many more hours without a worry."   Gauges: .011; .015; .024w; .032; .042; .052