Advanced 7.1 virtual surround sound engine True-to-life positional audio. The Razer Kraken 7.1 Chroma comes equipped with an advanced 7.1 virtual surround sound engine that immerses you deeper into the game. The engine is capable of ultra-low latency audio processing and modulates the audio source to simulate a 360⁰ surround sound experience that is usually achievable only by incorporating more than one positional driver in each ear cup.