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Koss UR40 Lightweight Headphone Item # 680764
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The UR40 delivers digital quality sound in an ultra-lightweight design for listeners on-the-go. The UR40 features dynamic elements for a wide frequency response from 15-22,000 Hz. A 2 mil titanium coating on its diaphragms increases the rigidity of the elements, minimizing mechanical distortion and ensuring exceedingly accurate sound reproduction. Computer-optimized neodymium iron boron rare earth magnet structures enable the UR40 to deliver greater volume, even with low-voltage portable devices. Oxygen-free copper voice coils improve signal transmission and conduction for cleaner, clearer sound. With its hybrid design, the UR40 combines the best of closed-style and open-style headphones. Closed leatherette earcushions form a light seal around the ears, enhancing bass frequencies. Screened earcups provide an open, hear-through sound that lets listeners stay in touch with the world around them. The result is a full frequency, clean sound that turns any recording into a "live" performance.At just over six ounces the UR40 wears comfortably even after hours of continuous listening. The airy mesh sling provides soft breathable support, ideal for those with touch-sensitive scalps. An adjustable headband accommodates all head shapes and sizes for maximum comfort. When it is not in use, the resilient and lightweight frame folds it into a compact configuration that's protective, easy to carry and convenient to store.
|Connector Plating||Gold Plated|
|Earpiece Design||over the head|
|Earpiece Sensitivity||98 dB|
|material||Leatherette; Oxygen-free Copper (OFC)|
|Maximum Frequency Response||22 kHz|
|Minimum Frequency Response||15 Hz|
|warranty length||limited lifetime|
|Weight (Approximate)||6 oz|
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