Features: Using microelectronic technology special frequency ultrasonic waves are used to act on the central nervous system of mites so that they can stop breeding and eating quickly escape from parasitic places or gradually die. Ultrasonic frequency conversion technology strong penetrating power. Deep mite removal is more thorough and the 24-hour avoidance rate is 97.6%. The applicable area is 80-100 (without wall partition) and it is recommended to use one for each room. When you use a bug in every room say no to the bug. Physical mite removal no radiation no impact on health. Physical sound waves no noise do not affect your rest. There is no noise no smell and it can emit harmless ultrasonic waves that cannot be heard by humans or animals. We are committed to making customers obtain products that they are satisfied with. If there is anything unsatisfied please contact us. Specifications: Color:White Pink Green Black Red Size: 40*113*26mm Width (including plug): 48mm Rated Voltage: 90/220 V Voice Frequency: 22 ~ 65KHz automatic frequency conversion covering more repugnant frequencies of mosquitoes and mites. Input Rated Frequency: 50/60 Hz Quota Power: 1W Net Weight: About 38.8g Note: Due to the screen lighting effect the actual color of the product may be slightly different. Due to manual measurement please allow size error of 1-2cm. includes: 1*Ultrasonic Mite Removal