2 Modes Function ON1 manual mode, press and hold the electric fly swatter's high-voltage button can kill flying mosquitoes. ON2 auto mode, the electric bug swatter is placed into the charging base, purple light high-pressure will attract insects to the high-volt grid and then shock them. 1200mAh Longer Lifetime This handheld bug zapper racket built-in Li-Battery that quickly and efficiently charges. Compared with disposable batteries and low-capacity batteries, our electric fly swatter racket have longer battery life. USB Rechargeable Base to Charging Most electric mosquito racket on the market are charged at the handle. Our mosquito bat has an auto zap mode and is designed with a charging base. The electric bug zapper racket can be charged while killing mosquitoes, which reduces the trouble of mosquitoes at night and increases the convenience and flexibility of product use.