[Long-time outdoor protection] Ultrasonic mosquito repellent provides long-term protection against mosquitoes. It is a must-have for all outdoor activities, especially camping, hunting, climbing, running, hiking, traveling, fishing, barbecue, gardening,picnic, golf and even simple barbecue cooking. Stay away from mosquitoes and enjoy outdoor happiness [Efficient, worry-free, convenient] It uses advanced ultrasound technology to interfere with spiders, mosquitoes, cockroaches, ants, flies, bugs and fleas, making them uncomfortable, and forcing them to leave quickly. It is safer than using chemical spray.Repel insects or rodents naturally without killing them. No need to clean up dead rodents. [USB charging, convenient and portable] This outdoor portable insect repellent uses micro USB to charge, no need to plug in the power source, large-capacity battery, you can take it with you, protect you from mosquitoes or other insect bites anytime andanywhere. It is the best companion for camping or traveling. With hooks, you can hang them on key chains, neck bags, bags, etc. (Please charge after receiving the product to ensure normal use.) [Non-hazardous and environmentally friendly] No chemical substances, no poison, no peculiar smell, no radiation, no noise, 100% safe for your family and cute dogs or cats. [Anti-flea and anti-lice for dogs, cats and pets] is safer than using chemical sprays. Just hang our portable mosquito repellent on your dog, cat or pet to protect against fleas, lice, lice, scurf and other insects, and in this way help your pet avoidskin problems.