WORKING PRINCIPLE Ultrasonic pest repeller adopted modern electronic technology to send out ultrasonic and bionoic waves with a frequency of 19-65KHz and a siren of 1-10KHz, which can simultaneously to disorientate thehearing and nervous system of pests such as mice and cockroaches, make them uncomfortable, and then escaping the sound wave emission area. TECHNICAL INDICATORS 1. Mains input: 100-240V/AC50/60Hz 2. Power consumption: less than 4W 3. Frequency range: There are 5 modes that can be switched by touching the keys according to the actual purpose and environment INSTRUCTIONS 1. Please place the product at a distance of 5. 90-7. 87 in from the ground for best results 2. Plug the product directly into a 100-240V outlet, and press the touch button to start working, and than the indicator light on 3. By touching the button, our product can be switched in five modes, long press the touch button to enter an smart frequency conversion mode 4. It is recommended that you can switch the frequency range regularly to prevent pests from adapting to a certain mode of sound waves SMART FREQUENCY CONVERSION Long press the touch button to enter an smart frequency conversion mode, eliminate insect pests without repeated manual control. APPLICATION/SCOPE 1. This product is mainly used to repel cockroaches, rodents and other rodents, and also has a certain repelling effect on spiders, ants and fleas. However, please do not place rodent pets (such as: gerbils, hamsters, guinea pigs, etc. )in the ultrasonic range. 2. Widely used: residential, apartment, catering service outlets, enterprises, arts, Museums, libraries, banks, wine cellars, farm buildings, boats, RVs, units, etc. 3. The effective range of the product is about 120 square meters, generally just insstall one per room. The effect will be more significant if you install multiple item or combine them with other insect repellen