Silicon Valley - #Logitech R400 Laser Presentation Remote.... | Facebook
Logitech R400 presenter with Keynote on Mac works | Pim's Blog
Logitech R400 Black Wireless Presenter Pointer Controller Compatible Windows 7 8 97855061614 | eBay
Logitech® R400 Wireless Presenter
100pcs Hard EVA Case For Logitech Wireless Presenter R400 laser turning page pen Storage Bag PPT Wireless Remote Control - AliExpress Consumer Electronics