No surround sound capability. really annoying and uncomfortable- but the main issue is that sometimes, for no reason whatsoever, the sounds stops while the headset is still connected. I have to wear socks but I dont mind. ) Im not going to go into details because there are many reviews already so theres no point in being redundant. I just opened these yesterday and the plastic just seems so cheap. The only con i have noticed with this paddle is the handle is little short. Controls are easy, one on each earbud, allows you to set the volume, change song or radio station, answer and making phone calls, all these without touching your phone. These are ok to take quick 5-10 seconds calls but I would not attend meetings in them. The build quality probably isnt nearly as nice as the higher end of the market, where everything is solid metal, though it is adequate for the price, and the functionality is extensive, especially with two of these setup for twin-engine aircraft. Bei 5 Sekunden geht der Kopfhörer in den Pairing-Modus.