A device for repelling pests includes a strap securable to a person and a module. The module has a hollow housing containing a printed circuit board, a switch, and a transducer. A battery drawer and a repellant drawer are removably insertable into the hollow housing. A repellant element impregnated with a evaporating repellant is affixable to the repellant drawer. The transducer causes high frequency waves and movement of the repellant element with the body causes the repellant to disperse.
