Incase EC30008 Pivot On Ear Headphones - Black/Green Folding earcups rotate flat for easy portability. Split headband is designed to be lightweight, comfortable and durable. Fully articulating earcups offer a wide range of adjustment. Suede covered foam on earcups. Custom tuned high-performance audio drivers. Hidden joints and gentle curves maintain a clean and seamless profile. Signature Incase soft-touch coating delivers a subtle matte finish. Integrated microphone and remote control for MacBook, iPod, iPhone and iPad. Right-angled audio jack. Drive type = Diaphram. Driver size = 40mm. Frequency Response = 20Hz - 2KHz. Impedence = 32 15% @ 1KHz. Sound Pressure Level = 103 3dB @ 1KHz. THD = Max 3%. Number of Drivers = 2. Number of microphones = 1.