The JVC HA-S900 are a pair of high-grade, lightweight over-the-ear headphones that have 40mm Neodymium drivers and a Ring Port structure design. This design bonds the carbon compound diaphragm to the ported ring that controls the diaphragm’s movement (sound pressure level) resulting in a greater frequency response. The ear-pads rest on top of the ear and are sound insulating which means they form a seal around your ear without letting sound escape or outside ambient noise in. A higher frequency response of between 8 and 26,000Hz, greater sensitivity and slimmer design have this model a step ahead of the Circum-Aural(ear surrounding) HA-S700. A feature also found in that model however is the ability to fold the ear pads flat for travel, and a carrying case is also included(replaced with 6.6ft extension cable in the HA-S700). The cord is a four foot tangle-resistant type with an iPhone compatible plug.
