Extend outdoor mosquito repeller and indoor mosquito repeller with this 280-hour refill. The mosquito repeller device (not included) creates a 20-foot zone of protection against mosquitoes. Our package includes two bottle of repellent refills. Each repellent refill lasts up to 280 hours. Compatible with outdoor and indoor mosquito repeller. Without sprays on your skin. No lotions or DEET to apply. No smoke, flames, or citronella. Enjoy max protection in 15 minutes. Easy to use, one button keeps mosquitoes away. OUR GUARANTEE: Package includes one bottle of 2-pack 280-hour refills. Compatible with outdoor and indoor mosquito repeller. We offer 1 year Quality Service.