Koss Spark Plug Earbuds

The Spark Plug features slow memory ear cushions that adapt to your individual ear size and shape. Properly inserted in your ear (see instructions inside), they deliver a customized fit that reduces ambient noise while providing outstanding bass and treble clarity.

Features:

• Dynamic element for extended frequency response
• Unique ear bud design directs sound into the ear canal for deep bass and extended frequency performance
• Improved slow memory ear cushions deliver better fit and isolation
• Includes replacement ear cushions
• Reliable L plug for improved reliability and durability

Specifications:

• Frequency Response: 10-20,000 Hz
• Impedance: 16 ohms
• Sensitivity: 112 dB SPL/1mW
• Distortion: < 0.3%
• Ear Cushions
• Cord: 4'