1. Electronic mosquito repellent bracelet: The latest technology intelligent electronic mosquito repellent bracelet, inconspicuous ultrasound. Create a noise barrier to protect you from mosquito bites no matter where you are! 2. USB charging and reusable: Unlike other brands bracelets, which need to be replaced every few days or capsules. Our smart bracelet can solve this problem for you, built-in aluminum polymer battery, 15 minutes of charging, 30 days of standby, 24 hours of use; saving money and trouble. 3. Fashionable and lightweight: Stylish and portable. Say goodbye to the skin of herbal bracelets, prevent harmful chemicals, have no peculiar smell, and are suitable for children. 4. Mosquito repellent sound wave: The bracelet achieves the effect of repelling mosquitoes by imitating the unpleasant sound of female mosquitoes such as male mosquitoes and cockroaches. 5. Fabulous Gift: Portable Fly Repeller is fitting for Children's Day and birthdays, showing your love and care to friends, loved ones, kids, and families, an ideal choice of gift for those who love outings. color:black/white package:1pcs