ThermaCELL Patio Shield Mosquito Repeller 448231. With no batteries or cords needed the Patio Shield is convenient portable mosquito protection ideal for entertaining gardening poolside and more. Features a 15-foot zone of mosquito protection. Powered by a safe and compact 12-hour fuel cartridge. Specifications for ThermaCELL Patio Shield Mosquito Repeller 448231: Manufacturer: ThermaCELL Additional Features: No Condition: New Age Group: Adults Quantity: 1 Length: 10 mm Height: 4 in Width: 4 in Package Contents: ThermaCELL Patio Shield Mosquito Repeller