The ASTRO A40 TR Headset + MixAmp Pro TR for Xbox One, PC and Mac is the premier audio solution for esports athletes, content creators and streamers. It meets esports athletes’ rigorous standards for audio fidelity, comfort and durability. The MixAmp Pro TR features Dolby Digital Surround Sound processing and enables lag and interference-free delivery of game sound and voice communication. The A40 TR arrives as an open-back headset featuring a swappable precision mic and customizable Speaker Tags. For loud tournament environments, the headset transforms into a closed-back, noise-isolating headset by adding a Mod Kit (sold separately) with sealed Speaker Tags, synthetic leather ear cushions and a voice-isolating microphone. <br /> Primary Specifications <br /> Connector: 3.5mm Mini-stereo and PC Splitter Boom Mic: 6.0mm Uni-directional Physical Specifications <br /> Weight w/o Cable: 369g Technical Specifications <br /> Transducer Principle: Dynamic, Open 40mm Sound Driver tuned for Gaming Frequency Response: 20 - 20,000 Hz Nominal Impedance: 48 ohms Distortion: THD < 0.1%