kázanie regulovať schôdzka headphones mono problem objav vybuchnúť automatický
Amazon.com: Jabra Evolve2 30 UC Wired Headset, USB-C, Mono, Black – Lightweight, Portable Telephone Headset with 2 Built-in Microphones – Work Headset with Superior Audio and Reliable Comfort : Electronics
Stereo vs. mono headsets - what's the difference? : Flight Training Central