Off Clip On Battery Operated Fan, A Personal Fan Circulated Repellent Battery Operated Device That Delivers Effective Protection Against Mosquitoes For Up To 12 Hours, Does Not Require Skin Application, Environmental Benefits, Utilizes Smaller Amounts Of Active Than Traditional Repellents, Non-Aerosol Product Form, No VOCs, 95+% Effective At Repelling Mosquitoes, Uses Off Refill, TV #105-841.