Westone Audio MACH 20 Universal Dual Driver In Ear Monitors Experience superior sound with Westone Audio's MACH 20. These universal in-ear monitors feature a proprietary dual-driver system with single low and single mid/high, delivering a quality soundstage and powerful low end. Enjoy a superior listening experience that can be enjoyed by any audience. SPECS Drivers: Dual Balanced-Armature Drivers Frequency Response: 20Hz – 18kHz Sensitivity: 110dB @1kHz Impedence: 96 Ohms @1kHz INCLUDED ACCESSORIES Linum BaX™ T2 Cable 5 Pair Foam Tips & 5 Pair Silicone Tips Impact Resistance Monitor Vault (hard case) Westone Audio Cloth Bag (carrying bag) Westone Audio MACH 20 Universal Dual Driver In Ear Monitors Experience superior sound with Westone Audio's MACH 20. These universal in-ear monitors feature a proprietary dual-driver system with single low and single mid/high, delivering a quality soundstage and powerful low end. Enjoy a superior listening experience that can be enjoyed by any audience. SPECS