Go Wired or Wireless - Logitech K800 Keyboard Review
Keyboard Science] TIL that the Logitech K800, the K810 AND the M515 "Couch Mouse" all use a variation of this proximity detection technology to save battery life : r/MechanicalKeyboards
Logitech Unveils New K800 Wireless Illuminated Keyboard | TechPowerUp
Logitech K800 Review - RTINGS.com
Go Wired or Wireless - Logitech K800 Keyboard Review