Logitech K350 Black Wave Unifying Wireless Keyboard NO USB RECEIVER DONGLE | eBay
Logitech K350 Wireless Wave Ergonomic Keyboard with Unifying Wireless Technology - Black Keyboards - Newegg.com
Logitech MK550 Wireless Wave Keyboard And Mouse Combo With Unifying Excellent | eBay
Logitech K350 Wave Ergonomic Keyboard with Unifying Wireless...
Amazon.com: Logitech MK550 Wireless Wave Keyboard and Mouse Combo - Includes Keyboard and Mouse, Long Battery Life, Ergonomic Wave Design, Black : Electronics