It has 4 hidden buttons that control the game sound and group volume, and a button to mute the mic. When you mute the mic, it lights up red as shown in the picture///// This headset features several prominent characteristics that differentiate it from the regular version: Wireless Charging Support: It is the first gaming headset to support Qi wireless charging technology, where you can charge it by placing the left earcup on a compatible charging base. Battery Life: Provides a battery life of up to 30 hours of continuous use. Surround Sound: Supports HyperX's custom 7.1 surround sound technology for an immersive gaming experience. Control: It has four customizable buttons on the side of the left earcup for easy access to quick settings. Connectivity: Works via a 2.4 GHz USB dongle to ensure stable connection. Please do not lowball, it's a professional gaming headset with surround sound, its original price was over 1000.💢 Selling for 350, negotiable💢