Description:Safe and non-toxic electronic mosquito repellent band suitable for children and adults, the combination of ultrasonic technology will keep the mosquito, bug, and insect away from you and your kids effectively. Provides protection indoors and outdoor for your convenience.Features:[Multifunction]Electronic mosquito repellent also supports electronic clock and temperature measurement functions.[Ultrasonic]Wristband uses high frequency, unobtrusive soundwaves to create a sonic barrier that protects you from mosquito bites.[Non-Toxic]Say goodbye to messy, oily mosquito creams and sprays, this sonic wristband keeps mosquitoes away without harmful chemicals, and is non-toxic to use in daily life.[Adjustable Length]Mosquito repellent bracelet is fully adjustable, each hole easily fits, making it perfect for adults and kids.[Widely Applicable]Pest control bands are perfect for outdoor activities or indoor use, like traveling, gardening, BBQ, hiking, fishing, etc.Specifications:Color: Pink; Black; White (Optional)Material: Silicone, ABSStyle: FashionMode: 3 ModesInput: 5V/1AFrequency: 34Hz-70KHzBattery: 1*3.7V, 90mA Lithium Battery(Included)Charging time: 30minWorking time: 150hFunction: Ultrasonic mosquito repellent, Electronic clock, Temperature measurementApplication: MosquitoOccasion: Home, Office, Outdoor, TravelPackage Size: 10*6*4cm / 3.93*2.36*1.57inchPackage Weight: 54g / 0.11lbPackage List:1 * Mosquito Repellent Bracelet1 * USB Charging Cable1 * User Guide