hmmm nabuhay to topic na to ah hehehe i think yah it's not proven 100% siya for mosquito take note of that pero effective siya sa malilinaw pa ang hearing masakit nga lang sa tenga i think pwede na rin siya hearing testing hehehe kung decibels ng tenga kaya mo marinig hehe as bodie says u can change it it to diff. tone like a,b,c,d depends on what u can hear but for me na-prove ko na malinaw pa pangdinig ko masakit sa tenga hehehe "tiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiittttttttttttt" ^_^