Koss Fitbuds BT190i review By What Hi-Fi? Lack the smoothness, detail and dynamic drive of some of the best budget pairs
Koss PRO4AAAT review By What Hi-Fi? 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? The Koss MV1s are uncomfortable and hot to wear and the sound doesn't make up for the discomfort.
