Shnoop offers the Terminix AllClear Sidekick Clip-On Mosquito Repeller Kit bundled with four refills for $12.99 with free shipping. That's the lowest price we could find by $9, although we saw it for $5 less last June. It includes one clip-on unit, two AAA batteries, and five refills (one in the kit and two refill 2-packs).