@gktkgts9: 🦟High technology ultrasonic mosquito repellent. ✅ 360 degree surround frequency electric sound waves ✅ Both mosquito repellent and mite elimination. ✅Elderly people, pregnant women, or children in the house can use it with confidence. 😘With this, you won't have to be afraid of being woken up by mosquitoes when you sleep at night.