In the box is says Lifetime warrenty, is that correct?

In the UK the lifetime warranty is honoured by Hama UK. You need to return the item at your own cost and pay £5 for return postage and handling. I just returned my headphones for the second time in 9 years - first time the plug became temperamental and this time one of the units stopped working. They don't repair, they send replacement.

Are these headphones suitable for heavy metal music (thrash/progressive metal in particular)?

Hi ElvenLord : Sorry, I'm too old to give a specific answer for that genre. I can report on excellent results with old school such as Dark Side of the Moon and Tangerine Dream "The Sorcerer" but make sure your playback has a graphic equaliser app or feature. Also be aware that the range of size headband adjustment is ok but not marvellous.

Do I get the Koss lifetime warranty, if i buy these from you as oppose to the home site?

Hama offer repairs in the UK and will do it under the lifetime warranty... I think you just need proof of purchase and a £5 handling charge

are these suitable for a kindle fire?

Yes they work fine with my own kindle fire hd (2nd generation) as they both use 3.5mm stereo jack. This also means they will support most devices such as MP3 players and mobile phones.

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🎧 Elevate your sound game with the iconic Porta Pro—where classic design meets modern convenience.

ALL DAY WEARABILITY - Ultra-lightweight at just 181 grams, these headphones stay comfortable whether you're working from home or commuting.
TANGLE FREE CONVENIENCE - Retractable cable design keeps your headphones neat and ready to go, eliminating frustrating knots and delays.
UNIVERSAL COMPATIBILITY - Seamlessly connect to a wide range of devices with the classic 3.5mm jack—no adapters needed.
IMMERSIVE SOUND SPECTRUM - Experience crystal-clear audio across the full 20 Hz to 20,000 Hz range, perfect for audiophiles and casual listeners alike.
PRECISION VOLUME CONTROL - Integrated volume control lets you fine-tune your listening experience without reaching for your device.

The Koss Porta Pro On Ear Headphones deliver high-fidelity sound with a broad frequency range of 20 Hz to 20,000 Hz. Featuring a retractable cable for easy storage and a lightweight plastic design weighing just 181 grams, these wired headphones offer comfort and convenience for both indoor and outdoor use. Compatible with a wide range of devices via a 3.5mm jack, they include volume control for seamless audio adjustments.

€ 109.39

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Smooth transaction and product arrived in perfect condition.

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Included components	earbuds
Age range (description)	Adult
Material	Plastic
Specific uses for product	listening to music
Recommended uses for product	Indoor/Outdoor
Compatible devices	[Wide Range of] Compatible Devices
Control type	Volume Control
Cable feature	Retractable
Item weight	0.4 Pounds
Water resistance level	Not Water Resistant
Frequency range	20 Hz - 20,000 Hz
Package type	Standard Packaging
Unit count	1.0 count
Style	Porta Pro
Product Dimensions	17.3 x 5.08 x 22.7 cm; 181.44 g
Item model number	6303157
Connector	3.5mm Jack
Material Type	Plastic
Size	5
Colour Screen	No
Hardware Platform	PC
Item Weight	181 g

Koss "Porta Pro" On Ear Headphones

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