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Koss headphones
Koss Pro-4AA
- Studio Quality Headphones
- Connectivity Technology: Wired
- Frequency Response - 10-20,000 Hz and Impedance - 16 ohms
- Model: PRO/4AA
- Color: Black
Koss Plug
- In-Ear Headphones
- Frequency Response - 2402 MHz to 2480 MHz and Impedance - 16 ohms
- Model: The Plug
- Color: White
Koss SportaPro
- Stereo Headphones
- Headband pivots backward at its base, easily converting from over-the-head style to a behind-the-head style.Connectivity Technology: Wired
- Foam ear cushions
- Collapses into a compact, protective package that tucks neatly in a briefcase, gym bag or backpack
- Frequency response: 5Hz-25kHz
- Imp: 60Ω
- 15 to 25,000 Hz frequency response
- Flexible headband design, fully collapsible
- Foam ear cushions for open sound
- Includes 0.125-inch and 0.25-inch stereo plugs
- Model: 155475
- Color: Black
Koss KPH30ik
- On-Ear Headphones
- Spacious sound & deep bass
- In-line microphone & remote
- Lightweight & portable with adjustable headband & sling
- Rugged cable system, Spring reinforced strain relief
- Limited Lifetime Warranty
- Model: 4351493467
- Color: White
Koss BT221i
- Wireless Bluetooth Ear Clips
- Wireless Bluetooth Ear Clip Headphones, Bluetooth version 4.2 Technology
- 6+ Hour Battery Life, Built-in rechargeable lithium-ion battery
- In-Line Microphone & Remote (Play/Pause, Start/Stop, Volume, Answer/End, etc.)
- Pivoting ear-clip creates the perfect fit and seal, Sweat Resistant, Cable Management Clip
- One Year Limited Warranty
- Model: BT 221 i
- Color: Black
Koss UR40
- Collapsible Over-Ear Headphones
- Frequency Response - 10-20,000 Hz and Impedance - 60 ohms
- Wide, 15 to 22,000 Hz frequency response
- Titanium-coated, high-polymer diaphragms deliver accurate sound
- Neodymium iron boron rare-earth-magnet structures for accurate sound reproduction
- Oxygen-free-copper voice coils for high signal clarity
- Closed leatherette ear cushions for maximum isolation and deep bass
- Model: 155524
- Color: Silver
Koss R-80

- Over Ear Headphones
- 8 foot, single-entry coiled cord with 3.5 mm (1/8-inch) plug
- Oxygen-free copper voice coils improve signal transmission and conduction for cleaner, clearer sound
- Closed, leatherette ear cushions form comfortable seal around ears, enhancing bass frequencies and decreasing ambient noise
- Adjustable headband adapts to any head size and shape for added comfort, Limited Lifetime Warranty
- Dynamic element construction delivers accurate acoustic sound reproduction with a wide frequency response
- Dynamic Element Construction Delivers Accurate Acoustic Sound Reproduction with a Wide Frequency Response
- Oxygen-free Copper Voice Coils Improve Signal Transmission and Conduction for Cleaner, Clearer Sound
- Closed, Leatherette Ear Cushions Form Comfortable Seal Around Ears, Enhancing Bass Frequencies and Decreasing Ambient Noise
- Adjustable Headband Adapts to Any Head Size and Shape for Added Comfort
- 8 Foot, Single-entry Coiled Cord with 3.5 Mm (1/8-inch) Plug and 6.3 Mm (1/4-inch) Adapter
- Covered under the Koss Stereophones Limited Lifetime Warranty
- Model: 154336
- Color: Black
Koss UR29
- Collapsible Portable Headphones
- Frequency Response - 4 Hz to 40000 Hz and Impedance - 16 ohms
- High fidelity stereophone utilizes an anisotropic magnet and 1.4 mil mylar element for deep bass and treble clarity
- Frequency Response: 18-20,000 Hz
- Collapsible design for protective storage and maximum portability when listening on the go
Koss UR10
- On-Ear Headphones
- Offers Maximum Sound Quality & Comfort In A Lightweight, Portable Design
- Closed Leatherette Ear Cushions Provide Maximum Isolation & Comfort
- Features Adjustable Headband That Provides A Secure Fit For Active Music Listening
- Closed-ear design for maximum isolation
- Dynamic components giving a high clear frequency response
- Adjustable headband for best fit
- Straight, single-entry 4 ft. cord with 3.5mm plug
- 60Hz-20kHz
- Model: 156027
- Color: Black
Koss Porta Pro
- Limited Edition Rhythm Headphones
- Limited Edition Colorway (Chosen by Koss fans world-wide)
- NEW: Microphone, remote & attenuating volume control
- NEW: Hard carry case (standard Porta Pro carry case also included)
- The Ultimate Portable On-Ear Headphones
- Koss LIMITED LIFETIME WARRANTY
- Model: 193053
- Color: Beige