There is no way that a pair of headphones with one speaker for each ear can give you true surround sound. It's physically impossible.
At best it will be stereo with simulated surround sound produced by means of proprietary software.
There's only one way to get true surround sound, and that's with multiple speakers positioned correctly and connected to a 5.1/7.1 audio output device.
Anyone who believes otherwise is just deluding themselves.