Usually Buy via Amazon offers the Breett 2.4GHz Wireless Presenter Remote
for $14.90. Coupon code "FXTBA8DO" drops it to $9.90
. Plus, Prime members bag free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.18.) That's $30 off list and the lowest total price we could find. It connects to Windows, Mac OS, Linux, or Android devices via the USB port and supports PowerPoint, Keynote, and Prezi.