Three-Layer Mesh Its a three-layer, encrypted mesh that leaves mosquitoes with nowhere to go. Energy-Saving LED Lighting The energy-saving LED lighting makes it convenient for users to catch mosquitoes in the dark. Safety Switch There is a safety switch on the handle. If the safety switch is opened and the working button is not pressed, the net surface is safe and there is no extra power. USB Charging It can be rechargeable.You can plug into any USB device to charge this battery operated fly swatter. Specifications: Type: Mosquito Swatter Killer Material: ABS,Metal Quantity: 1pc Item Color: Bluegreen Applicable Area: More Than 150 Square Meters Interface: USB Battery Capacity: 400mAh Charging Voltage: DC 5V Electric Net Voltage: 3600W Rated Frequency: 50Hz Item Size: 48*19.5cm / 18.86*7.66in ( L*W ) Net Weight: 310g / 10.93oz Package Included: 1* Mosquito Swatter Killer 1*USB charging cable 1*Manual Notes: please do not use electric mosquito swats near flammable gases and liquids. Please keep pressing the power button while catching the bug.