For accurate sound reproduction, these earbud-style headphones are made with oxygen-free copper voice coils and neodymium iron boron magnets. You can enjoy them with either a portable or home audio device, since both 0.125-inch and 0.25-inch adapter jacks are included.

"The Plug" weighs a mere quarter ounce and has a frequency response rated at an impressive 16 to 23,000 Hz (though its unlikely you'll hear bass output anywhere close to what you'd get from a similarly rated loudspeaker!). Impedance is 16 ohms, with less than a 0.3 percent distortion and reasonably high sensitivity of 112 dB SPL/1 mW. The straight, 4-foot cord is outfitted with a handy mute switch. It comes with a carrying case and a manufacturer's lifetime warranty.

Features:

• Frequency Response: 10-20,000 Hz
• Unique earbud design directs sound into the ear canalfor deep bass and extended frequency performance
• Specialty ear cushion material forms slowly in theear canal to provide a custom fit and maximum isolation
• Mute switch on the cord for easy sound controlwithout removing The Plug
• Convenient carrying case for storage and protection
• Straight, dual entry 4 foot cord
• Includes replacement ear cushions
• Reliable L plug for improved reliability and durability

Specifications:

• Frequency Response: 10-20,000 Hz
• Impedance: 16 ohms
• Weight: 0.25 oz w/o cord
• Sensitivity: 112 dB SPL/1mW
• Distortion: <0.3%
• Cord: Straight, Dual Entry, 4ft
• Plug: 3.5 mm