![Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else](https://m.media-amazon.com/images/I/31CGt1usDAL._QL92_SH45_SS200_.jpg)
Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else
![Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else](https://m.media-amazon.com/images/I/41FZss5lIUL._AC_SY580_.jpg)
Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else
![Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else](https://m.media-amazon.com/images/I/71KEXcgKemL.jpg)
Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else
![Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else](https://m.media-amazon.com/images/I/411CymdqKuL._AC_.jpg)
Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else
![Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else](https://m.media-amazon.com/images/I/61rDb-D58OL.jpg)
Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else
![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 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](https://pbs.twimg.com/media/EOTlq08X0AAAE-q.jpg:large)
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: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else](https://m.media-amazon.com/images/I/41tvfnmHIDL._AC_SY350_.jpg)
Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else
![Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else Amazon.com: Logitech Wireless Presenter R400, Wireless Presentation Remote Clicker with Laser Pointer : Everything Else](https://m.media-amazon.com/images/I/610TV-wnOxL.jpg)