Koss PORTAPRO Portable Stereo Headphone Comparison
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Headphone Type 
Noise Canceling
Interface Type
Headphone TypeInterface Connection
Wireless Transmitter Range
Headphone Type
Noise Canceling Reduction
Noise Canceling
Sensitivity
Overall Max Frequency Response
Overall Min Frequency Response
Physical AttributesWeight
Cord Length
WarrantyWarranty Information
More InfoURL
Additional SpecificationsEarpiece Controls
Integrated Microphone
Plating
Microphone Controls
Earpiece Technology
Frequency Band
Battery and Other FeaturesGeneral Features
Battery Life
Battery Size
Adjustable
N/A
Mini-phone
Mini-phone
48"
Adjustable
N/A
N/A
101 dB SPL/1 mW
25 kHz
15 Hz
2.10 oz
4 ft
Lifetime
N/A
N/A
N/A
N/A
Dynamic
Dynamic element design for deep bass performance Comfort Zone setting on temporal pad for comfortable, secure fit Multi-pivoting earplates and adjustable headband for added comfort Collapsible for maximum portability when listening on the go Cord: Straight, Dual Entry
N/A
N/A
N/A
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Over-the-head
Noise Isolating
Mini-phone
Mini-phone
51"
Over-the-head
N/A
Noise Isolating
N/A
20 kHz
20 Hz
9.17 oz
4.27 ft
1 Year Limited
Answer/End
Yes
Gold Plated
Mute
N/A
N/A
Foldable|Gold Plated Connectors
N/A
AAA
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Over-the-head
Active Noise Reduction
Mini-phone
Mini-phone
N/A
Over-the-head
20 dB
Active Noise Reduction
109 dB
25 kHz
10 Hz
7.40 oz
5.2 ft
1 Year Limited
N/A
N/A
N/A
N/A
N/A
N/A
Detachable Cable|Foldable|Gold Plated Connectors
40 hour(s)
AAA
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