Logitech Unifying Receiver for Connecting Multiple Devices
Unifyingとは - ロジクール
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
Zone Wireless Plus Unifying + Audio Receiver
Amazon.co.jp: Logitech Unifying USB Receiver for Performance Mouse MX [parallel import goods] [並行輸入品] : Computers