Established in 1999, Dianmen Digital Technology Co., Ltd. is one of the leading China koss earphone manufacturer and wholesaler of audio, video and communication products in China. We can offer you the complete OEM & ODM koss earphones service, including, but not limited to, the products designing, moudling developing, the plastic injection and hardware producing, firmware designing and products producing. We have established an integrated set of QA system of efficiency, which strictly administrates through the whole process including design, manufacture, sales and service. All of key processes for quality control are performed according to ISO9001:2000, CE, FCC, E-MARK and RoHS. Also we collect and offer cool and the newest 2009/2010 fashion products to you.

16 to 23,000 Hz frequency response
Deep bass performance
4-foot cord
Koss The Plug is a stereo earbud for the discriminating listener. It delivers accurate acoustical reproduction and unbelievable isolation typically found in more expensive, closed-style stereophones. The Plug features a dynamic element that is positioned just outside the ear and connected to a tubular port structure that is inserted on a soft expandable cushion into the ear canal. The soft foam cushion expands for a custom fit to improve isolation and enhance deep bass and treble clarity.The Plug has special ear cushions made of hydrophilic, formed urethane, for a custom fit each and every time it is inserted into the listener's ear. The custom fit enhances isolation when you want to plug out ambient sounds that interfere with the listening experience. The Plug delivers the full sound of Koss. Combined with your favorite music and a portable sound system, it is the ultimate accessory on the go. A mute switch on the cord provides connection to the outside world without having to un-plug.

16 to 23,000 Hz frequency response
Deep bass performance
4-foot cord
Koss The Plug is a stereo earbud for the discriminating listener. It delivers accurate acoustical reproduction and unbelievable isolation typically found in more expensive, closed-style stereophones. The Plug features a dynamic element that is positioned just outside the ear and connected to a tubular port structure that is inserted on a soft expandable cushion into the ear canal. The soft foam cushion expands for a custom fit to improve isolation and enhance deep bass and treble clarity.The Plug has special ear cushions made of hydrophilic, formed urethane, for a custom fit each and every time it is inserted into the listener's ear. The custom fit enhances isolation when you want to plug out ambient sounds that interfere with the listening experience. The Plug delivers the full sound of Koss. Combined with your favorite music and a portable sound system, it is the ultimate accessory on the go. A mute switch on the cord provides connection to the outside world without having to un-plug.

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