Physical repellent The bracelet stimulates and interferes with mosquitoes by emitting ultrasonic waves to drive them away. No chemicals, no noise, no radiation, creating a comfortable and good environment. Frequency conversion The mosquito repellent bracelet is fashionable and lightweight, three-speed sound wave adjustment, outdoor mode, indoor mode and sleep mode, weather protection. Three-in-one function The mosquito repellent bracelet has a built-in pedometer sensor, which can also be used for sports pedometers, making exercise evidence-based. In addition, it can also be used as a digital watch to display the time. Durable Smart mosquito repellent bracelet, USB fast charging, only needs about 30 minutes of charging time to work for a week. Effectively repelling mosquitoes, you can use it with confidence