Amazon.com: Logitech K750 Wireless Solar Keyboard for Windows, 2.4GHz Wireless with USB Unifying Receiver, Ultra-Thin, Compatible with PC, Laptop - Black : Electronics
Replacing Battery in the Logitech K750 Solar Keyboard (Step by Step) - YouTube
Logitech Wireless Solar K750 - keyboard - US - 920-002912 - Keyboards - CDW.com