Specially designed radiator - KIWI design USB radiator fans are specially designed for Valve Index, with the USB radiator fans, you will gain longer playtime and increased comfort as it can pull hot air out of your headset efficiently with fans, all while giving your Index the active cooling Dry and fog-free - USB radiator fan can keep your VR headset always dry and fog-free during longer sessions and active games. It can keep air moving and the unit cool without causing dry eyes Highly matched appearance - the Valve Index radiator has a concise and beautiful appearance, which is coordinated and integrated with VR equipment and has a high matching degree with Valve Index VR Easy to install and remove - the radiator plug and play, no charging necessary and is easy to install and remove, you only need to insert the USB connector into the VR interface, then insert the radiator on the VR, and finally click the switch to use Specifications Brand: KIWI design Color: Black Platform: Valve Index Package Dimensions : 4.88 x 2.76 x 1.61 inches Item Weight: 1.38 ounces Package Includes 1 x USB radiator fans and 1 x user manual