Shure SCL2 Sound Isolating Earphones are the first step into the world of sound isolation. They are attractive, comfortable and incredibly affordable. An excellent introduction into premium audio, the SCL2 features single dynamic microdrivers for full sonic range and resonant bass. Great for use in noisy environments such as bus stations, airports, or live stages where critical listening is important. Also, use around the house while mowing your lawn or vacuuming. Sound Isolating Earphones - Shure has been at the forefront of providing critically accurate and acclaimed listening for over 10 years. The legendary E Series have grown from a key accessory component of professional PSM® systems to a highly acclaimed independent product category and sought-after attachment for both live performance and personal listening applications. New SCL Sound Isolating™ Earphone models (SCL2, SCL3, SCL4, SCL5) use Shure's award-winning earphone technology, come in new graphic packaging, have updated accessories, and are available in more colors. All SCL models deliver professional caliber sound for live performance environments and will work with personal music players.