The Ultrasonic Mosquito Repellent Bracelet is an intelligent and efficient solution to keep mosquitoes at bay. Using pure physical mosquito repellent technology, this bracelet is safe and environmentally friendly, making it suitable for everyone in the family, including children, pregnant women, and pets. With its compact and portable design, it can be easily worn and taken anywhere, whether indoors or outdoors, such as the seaside, park, camping, hiking, or fishing trips. This bracelet operates by simulating specific sound frequencies that effectively drive away 70% to 80% of mosquitoes. It does not contain any toxic chemicals, making it a healthier alternative to traditional mosquito repellents. The battery life is long-lasting, providing up to 130 hours of continuous use. It also features fast charging capabilities, allowing for quick recharging in just about 30 minutes. The Ultrasonic Mosquito Repellent Bracelet comes in two colors, black and white, and includes a charging cable and an instruction manual. Please note that the actual color of the item may vary slightly from the pictures due to monitor differences. Additionally, please compare the detailed sizes with your own and allow for a 1-3cm error due to manual measurement. If you encounter any issues with the product, please contact us before leaving negative feedback. Thank you for your understanding. Key Features: Pure physical mosquito repellent technology Safe and environmentally friendly Suitable for all family members Compact and portable design Efficiently drives away 70% to 80% of mosquitoes Long-lasting battery life of up to 130 hours Fast charging in approximately 30 minutes Includes charging cable and instruction manual