Portable mosquito repeller :USB charging, which can store power Intelligent Ultrasonic Insect Repellent Mosquito Repellent to achieve the effect of repelling ticks, fleas and lice.Also effective against cockroaches, flies, mice and other pests NonToxic &Eco-Friendly - With our Ultrasonic pest eject say goodbye to the harmful poisons, dangerous chemicals spray, and traps. This pest reject ultrasonic repeller is 100% safe and effective. The Ultrasound waves will not influence the daily life of humans and pets. Child &Pet Safe:No harmful substances and Eco-Friendly. With this repellent indoor ultrasonic device your house will stay both repugnant to pests and safe for you. Also efficient as ants repellent indoor can be used for fishing accessories for outdoor tourism infant products. Exquisite Appearance:No any noise for driving Pest Controller.Drive away many kinds of pest quickly and powerfully. Sound waves repel mosquitoes, spread sound through horns, and interfere .Small and portable, with hooks, compact structure, not taking up space. Tips:After receiving the product, please charge it for several hours before using it to prevent the new product from running out of power. It is recommended to push the switch to "OFF" when charging.