New price low! Amazon with yooshome has the QUI RF 2.4GHz Presentation Clicker for PowerPoint with Volume Control for $20 - 50% off with coupon code EQJTEVMD at checkout - $2 off coupon (check  "Apply 50% off coupon") = $7.89 with free shipping on $35+ or with Prime. 

Amazon promo codes don’t always work on the first attempt. Try refreshing the page and re-entering the code.