Original Replacement USB Receiver for Logitech Wireless Presenter R400 and R800 Review - video Dailymotion
Zotech Replacement USB Receiver (C-U0014) for LogitechWirelessPresenter R400/R700/R800 - Not Compatible with All R400/R700/R800 Models (See Details Before Buying) : Electronics - Amazon.com
Logitech Wireless Presenter R400 – University of Hawaii Manoa Library Website
Logitech Unifying Receiver for Connecting Multiple Devices
New USB Receiver for Logitech Wireless Presenter R400 R700 R800 (C-U0014) 702534996667 | eBay
Zotech Replacement USB Receiver (C-U0014) for LogitechWirelessPresenter R400/R700/R800 - Not Compatible with All | Walmart Canada
Amazon.com : Original Replacement USB Receiver for Logitech Wireless Presenter R400 and R800 : Office Products