Mosquito Repellent Bracelet, USB Rechargeable Ultrasonic Waterproof Mosquito Repellent Watch for Indoor and Outdoor, Adults and Kids (Black)

General descriptionThis USB rechargeable mosquito repellent bracelet is designed for both indoor and outdoor use, suitable for adults and kids. Made from skin-friendly silicone, it is non-toxic, odorless, and free from added chemicals, making it safe for everyone, including babies. The bracelet effectively keeps mosquitoes at bay, protecting your skin from bites without harmful substances.Technical specificationsMaterial: Skin-friendly siliconeCharging time: 30 minutesStandby time: 30 daysUsable times on full battery: 130 or moreInstallationAdjustable watch strap suitable for most people.UsagePress the power button once to turn on and enter internal mode.Double press to switch to outdoor sports mode.Press three times to enter the quietest mode, ideal for sleeping.Press four times to turn off the device.Click the time display button to show the time.Other informationThis bracelet uses biological sound waves (ultrasonic bionic waves) to repel mosquitoes.Imitates unpleasant sounds of female mosquitoes, male mosquitoes, and cockroaches.Note: Reset the time before the battery is fully charged if it was dead before charging.