Thermacell Radius Zone Mosquito Repellent is designed to eliminate unwanted mosquitoes without the inconvenience of applying sprays or chemicals on your skin. This innovative repellent is powered by a lithium-ion battery and protection for up to 40 hours on a single refill. It effectively covers an area of 110 square feet, providing reliable mosquito defense wherever you go. The device can operate for more than six hours on a single charge and can even be used while charging, featuring an optional automatic shut-off timer after two hours of use. A full recharge takes about five hours. This travel-friendly, rechargeable, and scent- repellent comes complete with one Gen 2.0 Radius Repeller, a 12-hour refill, and a USB battery charger. It also includes a battery life indicator for added convenience. Model Number: