Logitech Wireless Solar Keyboard K750 review: Logitech Wireless Solar Keyboard K750 - CNET
Rechargeable Replacement Battery for Logitech K750 Solar Wireless Keyboard | eBay
Logitech K750 Wireless Solar Keyboard for Windows, 2.4GHz Wireless with USB Unifying Receiver, Ultra-Thin, Compatible with PC, Laptop - Black : Electronics
Logitech K750 Black USB RF Wireless Slim solar-powered Keyboard