Logitech R400 Wireless Presenter - Laser - Wireless - Radio Frequency - 2.40 GHz - Black - 1 Pack - USB - Filo CleanTech
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
Logi Bolt USB Receiver for Multi-Computer / Device Use
Logitech R400 Wireless Presenter
Logitech Unifying USB Receiver for Wireless Mouse and Keyboard, 6-Device (910-005235) | Staples
USB Unifying Receiver by Logitech® LOG910005235 | OnTimeSupplies.com
Logitech R400 Wireless Presenter
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Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 (5 Pack) - Walmart.com