365nm Wavelength & Vortex SuctionThe flying killers emit 365NM purple UV light waves to effectively attract mosquitoes through human bionic technology. Thanks to the strong suction of the fan impeller, mosquitoes have nowhere to escape. USB Charging and Portable The bug zapper lamp has a USB charging cable , which can be connected to power bank, computer, auto charger. Portable in size and lightweight, it can be used indoors and outdoors, or camping. Wraparound Mosquito UV LampExposed UV lamp beads and clear shade. The scope of action of the Enveloping Mosquito UV Lamp is wider. It is perfect for bedrooms, hallways, hotels, offices, farms and any other place where mosquito killing is needed. Safe and Smooth Operation Physically Operated and kills small insects like mosquitoes fly. It is non-toxic, odorless and chemical free, and 100% eco-friendly. Low noise operation will not disturb you and your baby while sleeping. Protective netThis mosquito killer has built-in protective net to effectively prevent touching the fan blade by spin. Don't worry if children touch it which is safe to use.