2-IN-1 Ultrasonic Insect Repeller & Indoor Fly Trap: Flies are attracted to the device by its bright UV light and trapped by the strong glue boards inside. Meanwhile, the PAYSIN Insect Catcher is equipped with three different sound wave frequencies, covering a range of 10kHz-65kHz, making it more effective against various pests such as mice, roaches, and spiders. Say goodbye to harsh chemicals inside your home with this 2-IN-1 UV Indoor fly trap & Ultrasonic Pest Repellent! Three Working Modes: MUTE MODE: Press once to activate the UV light and emit ultrasonic frequencies from 35kHz to 65kHz. ENHANCED MODE:Pressing twice doubles the UV light brightness, and pressing a third time causes the device to emit a faint sound frequency of 15kHz to 35kH. MOUSE REPELLENT MODE: Press and hold for 3-4 seconds to activate the UV light, flash the front light rapidly, and emit piercing sound frequencies from 10kHz to 15kHz. Hygiene And 100% Safe: Contains no pesticides, insecticides and is completely odorless.