Amazon.com: Logitech Unifying Receiver, 2.4 GHz Wireless Technology, USB Plug Compatible with all Logitech Unifying Devices like Wireless Mouse and Keyboard, PC / Mac / Laptop - Black : Electronics
LOGITECH ERGONOMIC WAVE Wireless Y-RCP140 Keyboard With Receiver C-BT44 EUR 23,73 - PicClick IT
Logitech WAVE Wireless Keyboard Y-RCP140 Just the KEYBOARD! | #1791516229