Ultrasonic mosquito repellent, insect repellent, mite repellent 360° Elimination Indoor Energy Saving D light Insect control (With green light) ◉ This is an unused item. ◉ The lid of the aroma tank requires a little force to open arrived. (It opened relatively easily for a man, but for a woman's strength It might be a little challenging.) 【Ultrasonic Mosquito Repellent】 It uses resonant ultrasonic & frequency conversion ultrasonic, and a dispersed SPL cavity sound wave. Physically eliminates mosquitoes, constantly changing the ultrasonic frequency within the frequency range that insects dislike, so mosquitoes cannot get used to it. With evolved insect repellent technology, it repels various mosquitoes and other pests by emitting ultrasonic waves that mosquitoes dislike in 360°, leading to a space where the whole family can relax with peace of mind. 【LED Light & Aromatherapy Function】 It has an LED light, which emits a natural and soft light, perfect for sleeping. The light function can be turned ON/OFF as needed. It also has a built-in aromatherapy slot. By inserting an aromatherapy tablet (not included), the space will be enveloped in a pleasant fragrance, killing two birds with one stone! 【Physical Mosquito Repellent & Ultra-Low Decibels】 No chemicals used! No radiation! It physically eliminates mosquitoes, with no worries about adverse effects on humans or pets, and can be used by small children and pregnant women. Ultra-low decibels, so you can sleep soundly at night. 【Overload Protection & Energy Saving】 Equipped with overload protection, it can be used safely. Furthermore, it adopts an energy-saving chip, with low power consumption of ≤1w, and less than 1kWh of electricity usage per month, making it environmentally friendly and safe to leave on 24 hours a day. 【Easy operation】 The main unit has a power button. Plug it into an outlet and press the power button to turn on the ultrasonic mosquito repellent function and the night light. Touching the power button again will turn off the light. At the same time, the ultrasonic mosquito repellent function continues to operate. Pressing the button a third time turns off this insect repellent device.