The ASTRO A40 TR Headset + Mix Amp Pro TR for PS4, 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 Mix Amp 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.Technical SpecificationsFrequency Response: 10Hz-24,000 HzPower Input: 250mA at 5VPower Output: 100dB SPL at 125Hz (80% at 0dBFS)Inputs Front: Headset connector, 3.5mm Aux in, two digital daisy chain ports.