High frequency sound wave keep the mosquitoes away,imtates the ultrasound of male mosquito.

1.High frequency sound wave keep the mosquitoes away,imtates the ultrasound of male mosquito.                                                2.Human ear can't hear,it's completely mute silence                                                                                                                                        3.Don't contain chemical or other dangerous device                                                                                                                                     4.Portable design,can be fixed on the belt or clothing,convenient to carry                                                                                            5.Powered by one section 7 alkaline battery                                                                                                                                                   6.Heart-shape indicator show through the shell                                                                                                                                           7.Suitable to home or outdoor use                                                                                                                                                                          8.Mini modeling throws in one replaceable cute cover

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HL-0820 High frequency sound wave portable mosquito repeller