Ivation Renewable/Rechargeable Wireless Mini Dehumidifier - Suited for Closets, Boats, RVs, Lockers & Gun Safes - Uses Non-Toxic Silica Gel Crystals White 1-Pack Fights Dampness & Humidity for an Area of 500 Cubic Feet Works w/Silica Gel: No Batteries or Plug-In Power Needed (while operating) Endlessly Renewable by Plugging In to Recharge Crystals Silently Operates for up to 2 Months Before Needing Recharge (Depending on the humidity in the environment) Spill- & Mess-Free, Non Toxic, and Child- & Pet-Safe