Koss SparkPlug Headphones

The Koss Sparkplugs are small, lightweight, in-ear headphones designed for portable listening. Speciality ear cushion material expands slowly in the ear canal to provide a custom fit and maximum isolation, allowing you to hear your music in more detail.

Features:

• Frequency Response: 10-20,000 Hz
• Dynamic element for extended frequency response. 
• Unique earbud 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.
• Straight, dual entry 4 foot cord