Original Usb Receiver Usb Bluetooth Signal Receiver Adapter For Logitech G903 G403 G900 G703 G603 G602 Wireless Mouse Adapter - Accessories - AliExpress
Got a G305 for christmas, sadly the G400s has to go, it has served me well the past 5 years. Have to say I really like the G305. : r/MouseReview
Compare Logitech G305 vs G502 Lightspeed Wireless - Pangoly
The latest logitech mouse just might be a G602 refresh/remade from the number and shape of the buttons shown in the pictures. : r/MouseReview