This mosquito repellent machine has two mosquito-killing modes: 1. Manual mosquito repellent mode: Slide the side switch to ON-1 and long-press the golden button to make it active and manually swing the mosquito trap racket to catch the mosquitoes. Once the button is released, it becomes inactive. 2. Intelligent mosquito repellent mode: Slide the side switch to ON-2 and place on the charging base.The mosquito trap racket, detects darkness and automatically switches on the UV light, attracting mosquitoes towards it.