The proprietary dual phase push-pull driver design of the ATH-E40 professional in-ear monitor headphones provides improved fidelity and efficiency. These headphones deliver powerful bass along with balanced mid and high frequencies to convey the full emotion of the music from the stage to the street. The ATH-E40 features specially designed housings that provide incredible isolation. The isolation and the comfort are enhanced by the four sizes of included silicone eartips (XS/S/M/L), which allow you to create a custom fit. The headphones also come with a detachable 1.6 m (5.2′) cable, with newly developed A2DC (Audio Designed Detachable Coaxial) connectors at the headphones and a 3.5 mm (1/8″) stereo mini-plug output, and a carrying case.Main Features:Proprietary dual phase push-pull drivers excel in monitoring applications by providing exceptional accuracy and clarityFlexible memory cable loops over ears for a custom fit and long-wearing comfortSpecially designed housings provide maximum isolation, allowing you to focus on the musicDetachable 1.6 m (5.2′) cable, with newly developed A2DC (Audio Designed Detachable Coaxial) connectors at the headphones, offers exceptional durability and optimized audio performanceIncludes a carrying case, 6.3 mm (1/4″) adapter, and silicone eartips (XS/S/M/L)Specifications:Type: DynamicFrequency Response: 20 20,000 HzSensitivity: 107 dB/mWImpedance: 12 ohmsWeight: 10 g (0.3 oz), without cableCable Detachable 1.6 m (5.2′) with A2DC connectorsConnector: 3.5 mm (1/8″) gold-plated stereo mini-plug, L-shapedAccessories Included: Carrying case, silicone eartips (XS/S/M/L), 6.3 mm (1/4″) adapter