The Nitecore EMR40 is an excellent choice for outdoor enthusiasts and gardeners looking for a lightweight, portable mosquito repeller. It creates a comfortable pest-free zone in an area of up to 16 ft radius outdoors and 11 ft indoors. With its updated efficient heating system, the EMR40 accelerates the release of the mosquito repeller mats making it 200% more effective. The EMR40 accepts readily available blue pyrethroid-based pads, eliminating the need for messy liquid refills and fire hazards. Weighing at about 8 oz, the EMR40 comes with a clip that can attach to bags and MOLLE straps for hands-free protection.The EMR40 features an extended runtime of 10 hours and can be recharged through a built-in USB-C port for continuous use, even while in operation. Light indicators let you know what mode youre using and when its time to recharge with its four battery level indicators. It even has a memory function so that when reactivated, the EMR40 will automatically remember the previous mode it was on. The EMR40 is also safe and reliable, boasting an IPX5 water resistance rating and durable construction for 1m impact resistance. Whether you're trekking, camping, fishing, cooking, or gardening, the EMR40 is a dependable solution for keeping bugs away both indoors and outdoors.