http://www.greendust.com/Headphones-phi ... 13784.html Overview : A lightweight headphone for long use, with foldable headband making it easy to store and carry. In addition, air vents provide rich deep sound. Features : Lightweight design improves comfort for prolonged use. Foldable headband makes headphone easy to carry around. Bass beat vents allow air movement for better sound. Specification : Sound : Acoustic system : open Magnet type : Neodymium Diaphragm : Mylar dome Voice coil : copper Frequency response : 14 - 22 000 Hz Impedance : 32 ohm Maximum power input : 100 mW Sensitivity : 100 dB Speaker diameter : 30 mm Type : Dynamic Connectivity : Cable Connection : two-parallel, symmetric Cable length : 1.2 m Connector : 3.5 mm Finishing of connector : chrome-plated Type of cable : copper
