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The Koss KEB40 Insider features breakthrough technology in both engineering and design. The compact, micro in-ear monitor, housed in an aluminum capsule for durability, features an isolation ring for lasting comfort and deep, isolated bass.
The Sound of Koss is presented through dynamic, ultra efficient 9mm drivers with frequency response of 15-20,000 Hz.
The Koss KEB40 Insider comes with three different sizes of silicone cushions to give listeners customized comfort and the perfect fit. The Koss KEB40 Insider also has a unique “cord-slider” to remove excess slack from the cord and assist in the prevention of cord tangles.
The Koss KEB40 Insider is covered under the Koss Stereophones Limited Lifetime Warranty.