Suitable for field camping you can use it with Power bank , USB cable include in package , you can use it anywhere at home, office , gym ,trip etc...... Mosquito elimination with harmless and physical control what you need Different from traditional mosquito elimination, adopts harmless 368 light waves to eliminate mosquitoes with physical control, which could better protect you and your family. PET&CHILD-FRIENDLY Mosquitoes disappear immediately, giving children and pets a better entertainment environment. For Customer Please Note this mosquito killer not rechargeable if you found that given button is not working that is not defective, but due to high demand we can not made additional feature as rechargeable , it will available in market soon