Logitech Wireless Presenter R400 mouse voice focus directional boom mic

voice focus directional boom mic enables crystal clear communications

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they can extend the distance to several kilometers even tens of kilometers which can basically satisfy the distance requirement of LAN

9-inch (5th gen) and iPad Pro 11-inch (1st

12 Programmable Buttons: Easily configure each button of this controller to execute simple single commands or intricate macros involving multiple keystrokes

Logitech Wireless Presenter R400 mouse voice focus directional boom micLogitech Wireless Presenter R400 with Presenter mode,built in class 2 laser pointer, intuitive touch keys for easy slideshow control; AA batteries required (best with Polaroid AA batteries), Bright red laser pointer: Easy to see against most backgrounds, Up to 50 foot wireless range for freedom to move around the room, 2. 4 GHz RF wireless technology, built in docking bay stores receiver for easy pack up and portability