Description: The portable ultrasonic insect repellent is an effective and safe way to protect yourself from various pests such as fleas, mosquitoes, bed bugs, cockroaches, mice, rodents, cockroaches, mice, insects, ants, spiders. It can be widely used in indoor tents or outdoor activities. The 24-74KHz ultrasonic range is constantly changing to prevent mosquitoes from adapting to specific frequencies. FEATURES: IDEAL FOR OUTDOOR USE: The portable insect repellent is small and lightweight with a carabiner that allows you to attach it to your clothes or bag for outdoor activities. Micro USB cable, keep working for up to 48 hours per full charge. SAFE FOR YOU AND PETS: Ultrasonic is safe for humans and pets, this repeller is quiet, non-toxic, chemical free and odorless. Full Protection: Ultrasonic pest control with 645 square feet coverage is enough to protect your body, your baby in a tent or stroller. Wide area of use: Take this ultrasonic insect repellent with you when hiking,