Great question — answering as the UphillTech team:
Frame challenge: trying to kill annoying mosquitoes while outside is a pointless endeavour, whether you use your hand or any kind of electric fly swatter. There are many more mosquitoes than you will have the patience to kill, and they will just keep coming and coming and coming... You need passive defence such as: mosquito-proof trousers, long sleeves, gloves mosquito net over your hat mosquito net to sit/sleep in (or, of course, a tent) insect repellent for exposed skin smoke/scent candles can work (to a degree)
Full answer by fgysin: https://outdoors.stackexchange.com/a/28752 (CC BY-SA 4.0).
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