Intelligent ultrasonic mosquito repellent braceletPure physical mosquito repellent, greenFast charging, standby for a long period of battery lifeSimulate specific sound frequencies and remove mosquitoesEfficiently drive 70% to 80% of mosquitoesWhole family can use.Does not contain any toxic chemicals.Long-term mosquito repellent Bracelet.Item Category: Mosquito Repellent BraceletInput: 5V/1AOutput: 34Hz-70KHzCharging time: about 30 minutesLife time: 130hColor: black, whiteSpecifications:Pure physical mosquito repellent, free of chemical drugs, safer and more environmentally friendly. Old people, children, pregnant women and pets can be worn, easy to carry, indoors and outdoors (seaside, park, camping, hiking, fishing, etc.)Package Included:1* bracelet1* charging cable1* instruction manualNotes:Due to the difference between different monitors, the pictures may not reflect the actual color of the item.Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement.Please leaving a message before you give the bad feedback, if the products have some problems.Thanks for your understandings.