Groove Style Bud Fontopia(R) / 16mm Drivers / Wide frequency range up to 23,000Hz / For Walkman(R) and Discman(R) Portable Stereo PET diaphragms - ensure high rigidity for minimum distortion; low mass for extended high-frequency response out to 23,000 Hz Sony Acoustic Twin Turbo(R) Circuit Frequency Response - 8 - 23,000Hz Includes Carry Pouch

These super-light, ear-bud headphones weigh a mere five grams (.18 ounces.) They are the perfect headphone for those who relish lightweight, quality headphones. The silent cap confines the music to the listener's ear and away from those in the immediate area, a plus for those using the headphones in the coffee shop or library. The earphones are also open-air, meaning they allow ambient noises to enter the ear; this translates to a safer headphones, as the listener will be aware of horns, whistles and shouts. These headphones are constructed of an anti-bacterial material for a cleaner listening experience.

The MDR-ED21LP's deliver a quality sound, even with their small size. The groove design and Bass Booster earpiece shape allows for a better fit; additionally, this system creates more bass response than conventional earpiece designs. The headphones use sixteen millimeter drive units for a deep bass and clear treble. Sony also uses neodymium magnets which provide more energy per ounce than other conventional magnets. The PET diaphragm gives the headphones a high rigidity for minimum distortion. Finally, Sony's Acoustic Twin Turbo circuit achieves high sonic output by utilizying sound chamber and duct technology. The cord is one meter long (3.3 feet) for ample range of movement. The housing is a modern, hi-tech, black and silver metallic finish. The compact carrying pouch stores the ear-buds and cord when not needed; its small size fits nicely in a purse or back pocket.

What's in the Box Sony MDR-ED21LP headphones and carrying pouch

Product Description Groove Style Bud Fontopia(R) / 16mm Drivers / Wide frequency range up to 23,000Hz / For Walkman(R) and Discman(R) Portable Stereo PET diaphragms - ensure high rigidity for minimum distortion; low mass for extended high-frequency response out to 23,000 Hz Sony Acoustic Twin Turbo(R) Circuit Frequency Response - 8 - 23,000Hz Includes Carry Pouch