Question 1

I want to use earphones on a plane, where the noise is very loud and regular headphones are inadequate. Will these be better?

Accepted Answer

As other respondents have said, these are not the type of earphones that will block airplane noise. And there's another reason, they may not be a good choice for use on an airplane: there is some some sound leakage out of the 'phones, which may annoy people next to you, especially if you crank up your listening volume trying to drown out the airplane noise. A good pair of in-ear phones work for me. Koss has a few models that you may want to consider. With Koss, you can be sure you'll get good sound, good value, and an unbeatable warranty.

Question 2

Do these go over the top of your head or around the back?  I am looking for something that goes around the back...open to suggestions.  Thanks!

Accepted Answer

They go over top of the head, but they are very lightweight and comfortable. I switched to these from some sony behind the head phones... I dont mind the change at all.

Question 3

Does this come with the lifetime warranty?

Accepted Answer

They do, but depending on the model, shipping can be prohibitive. If you had a pair any cheaper than the porta pro's, it would not be worth it to send in for warranty. They charge $9 for return shipping and handling, plus whatever it costs you to ship the item to koss.  You're looking at roughly $18 to ship this $40 pair of headphones in for warranty. Something like the sportapro's or the ktx1pro's would not be worth sending in.

Question 4

Does it come with volume control?  if not, what should i get if needed?

Accepted Answer

You also can buy a Koss VC20 volume control for under $10, which is a simple volume control that can clip onto your pocket or belt, if you like, and also serves as an extension cord. The KTCs have built-in remote as well as volume controls on the cord itself and are designed primarily for use with iPads, iPods, and iPhones. Hope that helps.

ASIN	B00001P4ZH
Additional Features	Foldable, Surround
Age Range Description	Adult
Amazon Bestseller	#7,305 in Electronics ( See Top 100 in Electronics ) #19 in On-Ear Headphones
Antenna Location	Indoor/Outdoor
Brand	Koss
Built-In Media	Protective Case
Cable Features	Detachable
Carrying Case Color	ブラック
Color	Black
Compatible Devices	Cellphones
Connectivity Technology	Wired
Control Type	Volume Control
Customer Package Type	Standard Packaging
Customer Reviews	4.4 4.4 out of 5 stars (14,949)
Enclosure Material	Plastic
Global Trade Identification Number	00021299147764, 00719040115079, 04007249270429
Headphone Folding Features	Open type
Headphone Jack	3.5 mm Jack
Headphones Ear Placement	On Ear
Impedance	60 Ohms
Is Autographed	No
Item Weight	181 g
Manufacturer	KOSS
Model Name	Koss Porta Pro
Model Number	6303157
Noise Control	None
Number of Items	1
Sensitivity	60 Ohm
Specific Uses For Product	Music
Style Name	Classic
Subject Character	文字なし。
Theme	ビデオゲーム
UPC	719040115079 021299147764 212991477642 021299101384
Unit Count	1 Count
Warranty Description	1 year from date of purchase
Water Resistance Level	Not Water Resistant
Wireless Technology	Bluetooth

KOSS オープン型オーバーヘッドヘッドホン折りたたみ式 PORTAPRO

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Description

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Common Questions

KOSS オープン型オーバーヘッドヘッドホン 折りたたみ式 PORTAPRO

Details

Details

Description

Specifications

Common Questions

KOSS オープン型オーバーヘッドヘッドホン折りたたみ式 PORTAPRO