When engaged, NoiseGard active noise reduction drops steady-state low-frequency noise (from about 500 Hz and below) by 15 dB--which the human ear perceives as more than halving the noise--thus enhancing the clarity of your music. The noise reduction circuit requires 2 AAA batteries (not included), but the headphones work fine without the circuit engaged.

Sennheiser's fold and flip design lets you turn the ear pieces 90 degrees and fold the headphones closed. Their ported design lets them move more air for greater bass response.

What's in The Box
6-foot Kevlar-reinforced cord, .25-inch stereo adapter, airline adapter, belt pouch.


With all the latest advances in digital music and sound fidelity, should you be using those headphones that came with your portable MP3 or CD player? Here's a way to get the best possible sound - The Sennheiser Way. The Sennheiser PXC 250 is a closed, dynamic, supra-aural mini stereo headphone with NoiseGard active noise compensation (requires 2 AAA batteries). Due to their active and passive attenuation of ambient noise, they let you enjoy music even in noisy environments. The headphones are foldable and come with a convenient belt pouch, making them an ideal travel companion.



Technical details:
Folding, lightweight, closed-ear portable headphones
NoiseGard active noise reduction cancels steady-state noise by up to 15 dB
Fold-and-flip design lets you turn the ear pieces 90 degrees for flat folding and easy transport
Includes .25-inch and 2-pronged airplane adapters
Uses 2 AAA batteries (not included), batteries required only for noise reduction






Jensen JNC50 Noise Canceling Collapsible Headphones (Silver)

Product description:

The JNC50 noise canceling headphone is ideal for plane, trains, and automobile journeys. It reduces ambient noise to provide quieter listening environment. The foldable headband design provides easy portability and the soft leatherette ear cushions deliver extra comfort.



Technical details:
Reduces ambient noise
Ideal for noisy environments
Foldable for portability
Soft leatherette ear cushions for comfort
Includes dual plug adapter for planes






P16 White Collapsible Light Weight Stereophones for Active Use

Product description:

The sleek, behind-the-head P16 Stereo phone delivers bass-enhanced high quality sound to active listeners with street-smart style. The P16's dynamic elements yield a full frequency response from 40-20,000 Hz. With a side-firing design that turns the elements and directs sound straight down the ear canal, the P16 enhances the bass performance of all types of music from rap to country. Many feel the side-firing design offers them a better fit that's critical to getting the best possible sound performance.



Technical details:
Manufacturer Part Number: 150590
Product Type: Headphone(s)
Connectivity Technology: Cable 4 ft
Sound Mode: Stereo Output
Frequency Response: 40Hz to 20kHz






KOSS UR19 Lightweight Closed-Type Collapsible Headphones

Product description:

Key Features: Closed leatherette ear cushions provide excellent comfort, maximum isolation from ambient sound and deep bass response Adjustable headband for enhanced comfort Compact, collapsible design for maximum portability Straight, dual-entry cord with in-line volume control Frequency response: 25Hz - 15kHz Distortion: <0.3% Sensitivity: 92dB Impedance: 32 ohms </ul>



Technical details:
Closed leatherette ear cushions
Adjustable headband
Compact
Colapsible






Koss KSC17 Streetstyle Collapsible Headphone with Volume Control

Product description:

With an extremely forward looking, and unique design, this headphone is destined to be duplicated by others. At the time this product was brought to market it was the first, and only Collapsible StreetStyle Headphone on the market, so all of the others out there are imitators. Koss offers a Limited Lifetime Warranty on all of their products, and is the originator of the Headphone, they celebrated their 50 Year anniversary in 2003.


A Portable headphone is a headphone that is used on the go. Portable headphones tend to be smaller, more lightweight, and may have features that lend themselves to listening on the go, like carrying cases or collapsible headbands.PRODUCT FEATURES: Dynamic element for extended frequency response; Volume control feature for convenient sound adjustment; Collapsible design for protective storage and maximum portability when listening on the go; Behind the head design for maximum comfort during extended wearing periods; Foam ear cushions for open, hear-through sound; Straight, single entry 4-foot cord.



Technical details:
Frequency response 40-20,000 Hz
Dynamic Element for Extended Frequency Response
Collapsible, fold up design for maximum portability and protective storage
Foam Ear Cushions for Open Hear Through Sound
Straight Single Entry 4 Foot Cord






Koss UR29 Collapsible Portable Headphones

Product description:

Built for maximum durability for DJ and recording use, the UR29 home/component headphones from Koss offer deep bass and strong isolation from external sounds through their closed-ear construction. The collapsible design ensures safe storage and maximum portability when listening on the go.

This high-fidelity "stereophone" boasts a wide frequency response of 18 to 20,000 Hz for subterranean bass and detailed, extended high frequencies. The UR29's single-entry, 8-foot cord grants broad freedom of movement, while its anisotropic magnet and 1.4 mil Mylar element ensure deep bass and treble clarity.

What's in the Box
Headphones, a .25-inch adapter, and a data sheet.


A home headphone is a headphone that is primarily used in the home, with home electronics. Generally speaking, home headphones are somewhat larger and more isolating. Home headphones with cords tend to have a longer cord.PRODUCT FEATURES: High fidelity stereophone utilizes an anisotropic magnet and 1.4 mil Mylar element for deep bass and treble clarity; Closed leatherette ear cushion for maximum isolation and deep bass; Built for maximum durability for DJ and recording use; Collapsible design for protective storage and maximum portability when listening on the go.





Technical details:
18Hz?20kHz
Utilizes anisotropic magnet and mylar element for deep bass and treble clarity
Designed for maximum durability for DJ and recording use
Collapsible headband design
Straight, single entry 8' cord with 3.5mm plug






Sennheiser HD-280 Dynamic Collapsible Headphones

Product description:

The HD-280 Pro is a closed-back, circumaural headphone designed for professional-quality monitoring. Its exceptional attenuation of environmental noise (up to 32 dB) makes it particularly useful for use in high-noise environments, in outside broadcasts, and for DJs. Featuring rugged design and optimum sensitivity, the HD-280 Pro will deliver detailed and natural reproduction of music and speech with a wide frequency response of 8 to 25,000 Hz (-10 dB).

Owing to its collapsible ear-pieces, the HD-280 Pro is highly compact when it comes to transportation. And all parts that are subject to wear and tear--such as earpads, headband padding, and the audio cord--are easily replaceable, ensuring long life. The headphone's 9-foot cord is detachable, so if it wears out you have only to replace the cord, not the headphone itself. The cord is made of oxygen-free copper for pure, long-lasting audio transmission.


The Sennheiser HD 280 headphones are designed for the professional who requires outstanding communication in their daily audio work. Regardless of the very noisy conditions you might be in, the HD 280 headphones help you get the job done by offering you excellent insulation from ambient noise with a linear, precise reproduction of the audio material. Comfort is also taken into consideration with the HD 280's. Soft, circumaural ear pads guarantee comfort over long periods of use. You can even replace all wearing parts if needed - single-sided coiled cable, ear pads & headband padding.





Technical details:
Dynamic, closed-ear headphones with up to 32 dB attenuation of outside sound
Lightweight and comfortable, ergonomic design
Extended frequency response and warm, natural sound reproduction
Collapsible ear-pieces for compact transport
Earpads, headband padding, and audio cord are easily replaceable, ensuring long life






Koss UR40 Collapsible Over-Ear Headphones

Product description:

Home and portable audio take on fresh life with quality headphones, and Koss's lightweight, closed-ear UR40 is designed to keep outside noises out and headphone sound in--perfect for use in busses and libraries alike. With its extended frequency range of 15 to 22,000 Hz, you'll never miss a single bass note or want for high-frequency splash or shimmer.

The UR40's titanium driver elements ensure taut low end and clear treble, while its collapsible headband design further lends it to portable applications and protects the headphone when not in use. The headphone comes with a four-foot, dual-entry cord and a .25-inch stereo adapter for use with hi-fi components.