1This electronic pest repeller can keep you away from those annoying pests and insects, , providing a peaceful and tranquil indoor environment 2Adopting ultrasound technology, it is more effective than traditional means of repelling pests and insects 3As a electric device, you only need to plug in, the ultrasonic pest repeller will start working immediately 4Unlike the mosquito-repellent incense and the like, this pest repeller can work effectively without causing any odour or residue 5And it is reusable, as long as you are careful while using it, normally, it can be used for a quite long time, very practical and economical