The Westone W20 in-ear headphones feature the world’s smallest dual-driver earphone with dedicated low-frequency driver. A true dual-driver earphone designed to expand your audio horizons, the W20 uses separate bass and high frequency balanced armature drivers to enhance your listening experience with incredible detail and dynamics. Westone's 50+ years of experience with in-ear applications has yielded a low-profile, lightweight, universal earpiece which delivers maximum comfort and in-ear coupling for dynamic transfer of sound. A new replaceable cable connection includes the braided EPIC cable and round MFi cable with 3-button Apple Control System and mic function, including volume +/- , tracking +/- , phone answer, and Siri activation. Westone's balanced armature drivers are significantly more compact and efficient than traditional dynamic drivers. By combining multiple balanced armature drivers with sophisticated crossover networks, Westone earphones provide enhanced sonic detail and a frequency range that extends well beyond typical in-ear solutions. Exchangeable black, blue and red color faceplates are included with secure attachment. Each set of W20 in-ear headphones comes with an EPIC Replaceable cable and MFi G2 cable, premium comfort tips, mini-monitor vault, cleaning tool, and 2-year warranty. The Mini Monitor Vault is constructed of a high-impact polymer and is the perfect size for travel and storage. It features a protective foam interior and weather resistant design. The Westone W20s are ideal for alternative rock, opera, Broadway, jazz, country/light swing, electronica, R&B, funk, rock, club/dance, and hip hop music, delivering dual driver performance to even the smallest ears.