Lotions and sprays are messy and leave you feeling icky. Ultrasonic Mosquito Repellent Bracelet is something better. Something natural and non-toxic that can effectively keep mosquitoes away. Now you can become invisible to mosquitoes! By mimicking the natural enemies of mosquitoes, the frequency of bat and scorpion wings shaking to achieve the purpose of eviction. Our smart bracelet does not need to replace capsules, no harmful chemicals.Ultrasonic Mosquito Repellent Bracelet has a fashion design in black or white color. Besides, its was waterproof. Built-in aluminum polymer battery, charging for 30 minutes, run 150 hours on a single charge, saving money and making it easier to use.FeaturesPowerful Mosquito Repellent: Produce high frequency, unobtrusive soundwaves to create a SONIC BARRIER that protects you from mosquito bites wherever you are!Safe To Use: Say goodbye to messy, oily mosquito creams and sprays, this sonic wristband keeps mosquitoes away without harmful chemicals, odors or fumes.3 Gear Drives The Design: The power is turned on as a file: daily indoor use. Press the second button again: switch the second-speed outdoor sports mode. Press the button three times again: silent modeEnergy-saving: Built-in smart chip, intelligent driving low-power operation all day, saving power. USB fast charging. It is charged every 30 minutes and can be used for up to 130 hours.Efficiently drive 70%-80% of mosquitoes.