No Buzz Zone Diffuser Mosquito Repellent BuzzEnder utilizes Geraniol to Create an Invisible Shield to Repel Mosquitos & Midges Cartridges Repel for up to 120 Hours; Contains 1 Refill Cartridge. Includes a Simple Lever Control to Adjust Airflow Emits a Pleasant Natural Odor - Safe for Children and Pets - Unit Color May Vary Great For Porches, Patios, Campsites, RV's & Throughout the Home