Ultrasonic Mosquito Repellent Bracelet has a fashion design in black and white color. Besides, it is 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.

Features: Powerful Mosquito Repellent. It's a product of high frequency, unobtrusive soundwaves to create a SONIC BARRIER that protects you from mosquito bites wherever you are. Say goodbye to messy, oily mosquito creams and sprays. With its safe usage, 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 then switch the second-speed outdoor sports mode. Press the button three times again, silent mode.

Energy-saving: Built-in smart chip, intelligent driving low-power operation all day, saving power with its USB fast charging. It is charged every 30 minutes and can be used for up to 130 hours. Efficiently drive 70%-80% of mosquitoes.