Check the listing for details. LightSpeed Aviation QFR Series Aviation Headset. Condition: Used. Listed at 50.00 USD. The LightSpeed Aviation QFR Series Aviation Headset is a high-quality aviation headset designed for pilots. It is compatible with Aviat aircraft and is manufactured by LightSpeed. Although it does not come with a warranty, it is a reliable and durable product that provides clear communication and noise cancellation for pilots during their flights. With its sleek design and top-notch features, the LightSpeed Aviation QFR Series Aviation Headset is an essential piece of equipment for any pilot looking to enhance their flying experience.