Logitech Compact Wireless Mouse, 2.4 GHz with USB Unifying Receiver, 1000 DPI Optical Tracking, 18-Month Life Battery, PC / Mac / Laptop / Chromebook, Blue - Yahoo Shopping
Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 (2 Pack) - Walmart.com
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Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 (5 Pack) | eBay