Specific ultrasonic frequency: this ultrasonic bat repellent devices uses a specific ultrasonic frequency that only bats and insects can recognize. And keep them out of your house. Large coverage: this squirrel mouse repellent operates silently so you can calmly set it up in a room and garage. Insect bat removal more for large and open spaces to have better protection for your furniture, pets and your house. Safe for child and pets: this cat repellent outdoor uses specific ultrasonic frequencies in which only insects, bugs and pests can identify and make them scramble to find a way out of your house. The bat repellent ultrasonic outdoor contains no odor or any insecticide components. Noiseless: the waves of ultrasonic pest repellent are far beyond the hearing range of human-beings. Enjoy a peaceful night sleep without any concerns for noise, keep your family have a good sleep form the noise. Easy to use: our mouse repellent outdoor can be used for a long time after charging. You can take squirrel repellent anywhere with you. Just press the on button to use, instantly help you away from pests. Colour:White Material:Plastic Package Contents: 1 * Ultrasonic Bat Repellent Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.