Koss Portapro Portable Hi-Fi Headphones Under £18

These headphones feature a remarkably wide 15Hz - 25kHz frequency response, less than 0.2% distortion and 60ohm impedance combined with an open backed design to provide sweet sound with punchy base. They are foldable making them very portable and include a 3.5mm jack and 3.5/6.4mm jack adapter on a 1.2meter cord so you can use them with your favourite MP3 player or Hi-Fi system. Included in the price is Koss' No Questions Asked lifetime warranty. Buy Now.