Amazon.com : Original Replacement USB Receiver for Logitech Wireless Presenter R400 and R800 : Office Products
Amazon.com : GenuineLogitech Replacement USB Receiver for WirelessPresenter R400&R800 : Office Products
Amazon.com: Zotech Replacement USB Receiver (C-U0014) for LogitechWirelessPresenter R400/R700/R800 - Not Compatible with All R400/R700/R800 Models (See Details Before Buying) : Electronics
Logitech Professional Presenter R800 with Green Laser Pointer 910-001350 - Newegg.com
Logitech R400 Wireless Presenter Remote Control
Amazon.com: Zotech Replacement USB Receiver (C-U0014) for LogitechWirelessPresenter R400/R700/R800 - Not Compatible with All R400/R700/R800 Models (See Details Before Buying) : Electronics