Koss Fitbuds BT190i review By What Hi-Fi? published 8 August 17 Lack the smoothness, detail and dynamic drive of some of the best budget pairs
Koss PRO4AAAT review By What Hi-Fi? published 22 January 10 Despite passable looks, these headphones from Koss are heavy, cumbersome and with a poor, ill-defined sound that's best avoided
Koss MV1 review By What Hi-Fi? published 30 April 09 The Koss MV1s are uncomfortable and hot to wear and the sound doesn't make up for the discomfort.