After seven times of use,there have been only 5 gnats during the trap and they have been nevertheless alive!!! The charger broke off in the device & I threw it from the garbage exactly where it belonged. Use fly paper. No worries! Zappify is extremely user-welcoming. Take away it https://troyjptvy.blogdun.com/29407169/the-5-second-trick-for-zappify-mosquito-review