Found 20th Apr 2017
Crystal Clear Wireless - Intelligent channel-hopping for an interference-free wireless experience
Four EQ Presets - Personalize your PS4 and PS3 audio with extra bass, treble or a combo or both
Rechargeable Battery - Ditch the disposable batteries with a built-in rechargeable battery delivers over 15 hours of wireless gaming
Mobile Gaming Versatility - Connect the included Mobile Cable for wired gaming on PS Vita or any mobile device.
New PS4 Without Optical Jack - Some of the Stealth 400's features are affected on the new, slimmer PS4 (2016) without the Optical jack. Turtle Beach is creating a firmware update that will restore/replace certain features via USB only.