Logitech K750 Wireless Solar Keyboard for Windows, 2.4GHz Wireless with USB Unifying Receiver, Ultra-Thin, Compatible with PC, Laptop - Black - Newegg.com
Logitech Wireless Solar Keyboard K750 review: Logitech Wireless Solar Keyboard K750 - CNET
Amazon.com: Logitech MK750 Wireless Solar Keyboard and Wireless Marathon Mouse Combo for PC : Electronics