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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Description

🎧 Elevate your everyday audio with the legendary Porta Pro – where classic meets convenience!

TIMELESS COMFORT - Iconic on-ear design crafted for extended wear without fatigue
EFFORTLESS CONTROL - Touch-based volume control lets you adjust sound on the fly with ease
TANGLE FREE FREEDOM - Innovative retractable cable keeps your setup neat and hassle-free
PRECISION SOUND RANGE - Wide 20 Hz - 20,000 Hz frequency response delivers rich, immersive audio
UNIVERSAL COMPATIBILITY - Works effortlessly with a broad spectrum of devices via 3.5mm jack

The Koss Porta Pro On Ear Headphones combine a lightweight, plastic build with a retractable cable and touch volume control, delivering a wide frequency range (20 Hz - 20,000 Hz) for rich sound. Compatible with most devices via a 3.5mm jack, these headphones offer timeless comfort and practical features ideal for both indoor and outdoor listening.

Specifications

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	181 g
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
Control method	Touch
Number of items	1
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

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