Portal envelopes you in spine-tingling surround sound, so you'll always feel like you're in the heart of the action. Powered by advanced Dolby Atmos technology, and tuned to our signature audio standards, these gaming headphones place sounds precisely in 3D space so you can react fast. Virtual worlds never sounded so real. Up to 19 hours with wireless gaming, Bluetooth and Active Noise Cancelling. Up to 42 hours with Bluetooth and ANC. Approximately 2 hour charging time.