ActiveAire freshener dispenser automatically stops odor in the restroom stall to remove odor where you need it most. Motion-sensing technology automatically neutralizes odor by releasing a burst of freshness upon entering and leaving the stall. Plus, its on-demand feature can be activated with a simple wave of the hand if a visitor needs a little extra burst of freshness. The easy-to-access design sits right atop the Georgia-Pacific compact side-by-side bath tissue dispenser (sold separately) to make maintenance a breeze. Single-key construction provides ample security to help reduce the risk of vandalism or theft. Freshener dispenser is battery-operated and includes three AA batteries..