Are you being troubled by the pest like Mouse, Bug, Mosquito, etc? Don't worry about it The item is a wide range, practical and eco-friendly electronic ultrasonic pest repeller. The ultrasonic pest repeller is safe for your family members and pets. A wonderful mosquito killer suitable for use in home, bedroom, office. Feature - Color: Black. - Material: Plastic. - Size: 13x7.5x3.2cm - Sound frequency: 20khz-155khz - Voltage: 110-240V - Touch button, easy to switch between CF constant frequency mode and VF variable frequency mode. - 360 angle sound frequency, up to 160m2 wide coverage, for home. warehouse, hotel, restaurant, office, hotel - Using ultrasonic technology to drive away most kinds of flying and crawling pests such as mosquitoes, bats, ants, cockroaches, mice, fleas, etc, bringing you a clean environment. - The ultrasonic high-frequency sound is inaudible to human ears but will startle and frighten away insects and rodents. - Compact and portable, more convenient. Warm Tip: Dear buyer, Due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand