The ATH-CLR100iSBL Sonic Fuel in-ear headphones give you great sounding audio with a travel-friendly design that includes an in-line mic and control button.The 8 5 mm drivers provide crystal clear sound reproduction with marvelous depth and detail.Plus with Audio-Technica's ear-fit design and three sizes (S/M/L) of ear tips to choose from you'll enjoy long-lasting comfort and outstanding sound isolation.