Description:Portable Ultrasonic Pest Repeller is a effective and safe way to protect you from all kinds pests, like Fleas, Mosquitos, Bed Bugs, Cockroach, Rats, Rodents, Roaches, Mice, Insect, Ants, Spiders, it can widely used in house tent or outdoor activities. The range of 24-74 KHz ultrasonic keep changing to avoid mosquito adaptation to a certain frequency.Features:GREAT FOR OUTDOOR USE: Portable Pest Repeller with compass is small and lightweight, with a carabiner allows you attach to your cloths or bag for outdoor activities.SOLAR USB POWERD: Built-in rechargable battery can be solar powered, also come with micro USB cable, keep working up to 48 hours after every full charge.SAFE FOR YOU AND PETS: Ultrasonic waves are safe for humans and household pets, this bug repellent is Noiseless, Non-Toxic, Chemical-Free and Odorless.ALL AROUND PROTECTION : Ultrasonic Pest Control with a coverage of 645 sq.ft, large enough to protect all your body, tent or baby in stroller.WIDE USAGE AREA: Take this ultrasonic pest repellent along with you when you are climbing, running, camping, fishig, hiking and any other outdoor activity.Specifications:Color: BlackMaterial: ABSRated power: 3WInput Voltage: 3.7VInput Voltage: 90-250Battery Capacity: 200MAWorking time: 48 hoursCharging time: 2 hoursEffective coverage: 40-60 sq.m / 430-645 sq.ftSize: 80 * 72 * 25mm / 3.1 * 2.8 * 1inPackage Size: 9 * 8 * 5cm / 3.5 * 3.1 * 2inPackage Weight: 74g / 2.6ozPackage List:1 * Portable Ultrasonic Pest Repeller1 * Micro USB Cable1 * Carabiner