Thanks to Danstar, it is available at cheaper price $139.30 from JB Hi-Fi.
I have G633 and totally love it using with PC. Combined with Logitech software they sound really good. This G933 should give you same or better experience without cables.
Features include 40 mm Pro-G™ drivers for booming bass and crystal-clear highs, DTS® Headphone:X 7.1 surround sound, and 2.4 GHz wireless for solid, low-latency, connectivity and multi-input connectivity lets you connect multiple devices. G933 also features LIGHTSYNC technology providing next-gen RGB lighting that synchronizes lighting and game profiles with your content.
15 Meter wireless range
Experience incredible 7.1 surround sound with Dolby® Headphone or DTS® Headphone:X.17.1 Surround sound requires Logitech Gaming Software
G933 mixes audio from up to three devices at once. Choose from PC, mobile and game consoles including Nintendo® Switch™, PlayStation® 4 and Xbox® One.3DTS Headphone:X is not available on game consoles. Some console controllers require an adapter for audio cable input.
G933 has two customizable LIGHTSYNC lighting zones: The light strips and logos. Each zone can each be programmed separately from approx. 16.8 million colors, or with different animations and effects.
https://www.ozbargain.com.au/node/444068
$139