Logitech Bluetooth Audio Receiver for Wireless Streaming
Logitech G says this app will improve gaming audio if you take a picture of your ear - The Verge
List of Logitech products - Wikipedia
Amazon.com: Logitech G560 PC Gaming Speaker System with 7.1 DTS:X Ultra Surround Sound, Game based LIGHTSYNC RGB, Two Speakers and Subwoofer, Immersive Gaming Experience - Black : Electronics
Logitech G Pro X review: A great PC and productivity headset - SoundGuys