The A40 TR headset can be adapted to any environment by adding ASTRO Mod Kits. For loud pro tournaments, you can transform the A40 TR from an open-back to a closed-back noise-cancelling headset by swapping Mod Kit components including noise-cancelling Ear Cushions, Voice isolating Mic, Closed Back Speaker Tags and a Padded Headband. The A40 TR Mod provides premium comfort for users, allowing for extended campaigns and grueling multiplayer battles.