Zotech Replacement USB 2.4GHz Adapter/Receiver for Logitech Artemis Spectrum G933 Wireless 7.1 Surround Sound
Logitech G533 G933 Wireless Headset Usb Receiver Headset Accessories G533 G933 Dongle - Usb Gadgets - AliExpress
Logitech USB 2.4GHz Adapter/Receiver for Logitech Artemis Spectrum G933 Wireless | eBay
Amazon.com: Zotech Replacement USB Receiver (C-U0014) for LogitechWirelessPresenter R400/R700/R800 - Not Compatible with All R400/R700/R800 Models (See Details Before Buying) : Electronics