Koss PortaPro (with Case) comparison

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Product name	Koss PortaPro (with Case) Close	JVC Flats (Black) Close	Audio-Technica ATH-M50 Close	Audio-Technica ATH-M35	MEElectronics HT-21 Travel (Black) Close
Price	$44 to $59 at 4 stores	$10 to $19 at 5 stores	$129 to $159 at 2 stores	$51 to $199 at 8 stores	$24 to $39 at 3 stores
CNET editors' rating	4.0 stars Excellent Overall score: 8.3 (4.0 stars)	4.0 stars Excellent Overall score: 8.0 (4.0 stars)	4.0 stars Excellent Overall score: 8.6 (4.0 stars)	4.0 stars Excellent Overall score: 8.2 (4.0 stars)	4.0 stars Excellent Overall score: 8.0 (4.0 stars)
Average user rating	4.0 stars out of 121 reviews	4.5 stars out of 1 review	4.5 stars out of 26 reviews	4.5 stars out of 2 reviews	4.5 stars out of 6 reviews
Release date	January 01, 1984	November 22, 2010	December 05, 2009	May 08, 2012	January 19, 2011
The Bottom Line	Koss hit a home run with the PortaPros. Love or hate the design, there's no denying the sound quality here: they're the ideal companion for mobile audiophiles and home theater enthusiasts.	Though they look a little cheap, the JVC Flats are lightweight, comfortable on-ear headphones that sound surprisingly good for sub-$15 headphones.	The Audio-Technica ATH-M50 Professional Studio Monitor Headphones are among the best available for less than $200, offering excellent sound and build quality.	While they're not in the same league as the step-up ATH-M50, the Audio-Technica ATH-M35 costs a lot less and offers impressive performance and decent build quality for the money -- plus it has the fold-up element that's missing from the ATH-M30.	You may be fooled by their featherweight design, but the MEElectronics HT-21s earn our recommendation for their ample soundstage, subtle aesthetic, and portable convenience.
Basic specs
Features	See What's the Same or What's different
Packaged Quantity	1	1	1	1	1
Sound Output Mode	Stereo	Stereo	Stereo	Stereo	Stereo
Color	Info unavailable	Black	Info unavailable	Info unavailable	Black
Connectivity Technology	Wired	Wired	Wired	Wired	Wired
Audio Specifications	Frequency Response 15 - 25000 Hz - Sensitivity 101 dB/mW - Impedance 60 Ohm	Frequency Response 12 - 24000 Hz - Sensitivity 103 dB/mW - Impedance 32 Ohm	Frequency Response 15 - 28000 Hz - Sensitivity 99 dB - Impedance 38 Ohm	Frequency Response 20 - 20000 Hz - Sensitivity 100 dB - Impedance 65 Ohm	Frequency Response 20 - 20000 Hz - Sensitivity 114 dB - Impedance 32 Ohm
Recommended Use	Portable audio system	Cellular phone Portable audio system	Info unavailable	Info unavailable	Info unavailable
Manufacturer Warranty	Limited lifetime warranty	Info unavailable	Info unavailable	Info unavailable	1 year warranty
Headphones Type	Headphones - Binaural	Binaural	Headphones - Binaural	Headphones - Binaural	Headphones - Binaural
Headphones Form Factor	On-ear	Info unavailable	Full size	Full size	Full size
Product Type	Headphones - Wired	- Wired	Headphones - Wired	Headphones - Wired	Headphones - Wired
Remote Control	None	None	None	None	Info unavailable
Product Description	Koss PortaPro - Headphones	JVC HA S160-B	Audio-Technica ATH M50 - Headphones	Audio-Technica ATH M35 - Headphones	MEElectronics HT-21 - Headphones
Full specifications	Full specifications	Full specifications	Full specifications	Full specifications	Full specifications
Buying choices	Crutchfield $59.99 In stock: Yes Kmart.com $49.99 In stock: Yes Sears $49.99 In stock: Yes Prices from 3 CNET Certified stores	Sonic Electronix Inc. $14.95 In stock: Sears $14.99 In stock: Yes OfficeMax $19.99 In stock: Yes Prices from 4 CNET Certified stores	Sonic Electronix Inc. $129.95 In stock: Price from 1 CNET Certified store	zZounds $69.00 In stock: Yes Musician's Friend $69.00 In stock: Yes Sonic Electronix Inc. $54.99 In stock: Prices from 7 CNET Certified stores	Kmart.com $39.99 In stock: Yes Amazon.com Marketplace $24.85 In stock: Yes Prices from 2 CNET Certified stores
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