Solaar version 1.1.1

Lightspeed Receiver
  Device path  : /dev/hidraw4
  USB id       : 046d:C541
  Serial       : 18E8EC31
    Firmware   : 01.01.B0027
    Bootloader : 01.27
    Other      : B9.BC
  Has 1 paired device(s) out of a maximum of 1.
  Notifications: wireless, software present (0x000900)
  Device activity counters: (empty)

Seen paired with G915 WIRELESS RGB Mechanical Gaming Keyboard 407E