Marcus Mengs on Twitter: "New receiver for @Logitech R400 presentation clicker mitigates wireless keystroke injection. Had 5 minutes to test a replacement receiver. The new ones marked with 'ESW3601' restrict injectable keys
Amazon.com : Original Replacement USB Receiver for Logitech Wireless Presenter R400 and R800 : Office Products
Logitech R400 Wireless Presenter - Monaliza
New R400 2.4ghz Usb Wireless Presenter Red Laser Pointer Ppt Remote Control For Powerpoint Presentation - Remote Control - AliExpress
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Professional Wireless Logitech R400 Receiver PPT Presenter Red Laser Pointer | eBay
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