How to change battery Logitech Wireless Presenter R400 - YouTube
Logitech R400 910-001354 Presenter w/Laser Pointer, Black | Quill.com
Logitech R400 Wireless Presenter Remote Control
Original Replacement USB Receiver for Logitech Wireless Presenter R400 and R800 | Amazon price tracker / tracking, Amazon price history charts, Amazon price watches, Amazon price drop alerts | camelcamelcamel.com