Ultrasonic mosquito repellent device effect scope:5-10m Can fixed time(4 or 6 or 12 hours) Used lithium battery

EffortApplying 3V button battery, the electronic suit for home use and very convenient to take along when you go out to have a trip, picnic, fishing and climbing etc.

Validity scope6 to 12 square meter

Operation1. Open the battery cover and put one piece of battery of Cr2032 in it.2. Put the switch to the left: turn the power on.Put the switch to the middle: the flying sound of dragonfly or bat will heard.Put the switch to the right: imitated flying sound of male mosquito.3. Take the Electronic Mosquito Repeller along when you go out at evening, the preset light bulb(at the bottom of the unit) will the useful for you.

Ultrasonic wave mosquito device