Superb studio monitor sound quality made affordable The Edifier H840 Studio Monitoring Stereo Headphone is an incredibly low priced entry-level stereo headphone. These headphones are engineered to give you the most life-like audio quality. Featured with a simple, classic yet elegant style, exquisite material and workmanship, the H840s provide you with all day comfort. These headphones are made with an around-the-ear closed back design, which amplifies the effect of these noise-isolating headphones. Phil Jones of Pure Sound carefully calibrated these headphones ensuring a listening experience that sounds simply pure and clean. The H840 offers a rich sound and prominent bass. Altogether, these headphones have a high quality sound, are lightweight, durable, comfortable and affordable. Technical Specifications Driver Unit: 40mm NdFeB magnetic unit Impedance: 32Ohm - Frequency Response: 20Hz-20KHz Sound Pressure Level (SPL): 98dB Connector: 3.5mm stereo gold-plated plug Cable: 2m TPE Y shape cable Weight: 200g net Buy with confidence from world’s second largest manufacturer. Edifier is the world’s second largest consumer audio manufacturer. Despite not well-known in the US, Edifier has great market shares in Asia, Europe and South America. Edifier is the parental company of STAX, one of the most expensive headphone brands in the world. Edifier has incorporated similar technology and design concept into its consumer earphones and headphones, and strives to make the best sound affordable to everyone.