Lightspeed Receiver
  Device path  : /dev/hidraw9
  USB id       : 046d:C53A
  Serial       : 5B2B9A98
    Firmware   : 40.03.B0014
    Bootloader : 02.09
    Other      : AA.CA
  Has 2 paired device(s) out of a maximum of 1.
  Notifications: wireless, software present (0x000900)
  Device activity counters: (empty)

Seen as part of a G PowerPlay Wireless Mouse Pad with a Candy companion chip paired a number 7
Seen paired with a G502 Gaming Mouse 407F.