General description Ultrasonic waves can make pests uncomfortable and scare them away without killing them. This portable ultrasonic mosquito repellent is odorless, tasteless, and environmentally friendly, making it a safe choice for your family. It is designed for low power consumption and is made from high-quality ABS plastic, ensuring durability and a good touch. The compact size and included lanyard make it easy to carry, while its USB power capability allows it to be powered by various sources such as computers, car chargers, and power banks. Technical specifications Effective range: 50-80 square meters Power source: USB powered Usage This insect repellent is suitable for use in various environments, including homes, warehouses, shops, hotels, hospitals, offices, gardens, and grain depots.