Product Features: The device uses ultrasonic frequencies to generate unpleasant rat noises to create an uninhabitable environment to repel rats. < /p> 1. PRODUCT SIZE: 1406887MM 2. Product Net Weight: 285g 3. Power consumption 100-240V 50/60Hz 4. Power: 2W 5. Ultrasonic frequency: 35-50KHz 94db (0.1m) 6. Beam angle: 160° How to use: 1. Connect the adapter AC100-240V socket input; 2. The power indicator on the front of the fuselage lights up and emits ultrasonic waves; 3. In order to prevent mice from getting used to ultrasonic, please adjust the frequency of ultrasonic repellent mice or change the placement position from time to time; 4. The test button on the back of the fuselage can confirm whether the device needs to be started. 5. When installing, please face the front of the host as close as possible to the place where the rats are infested, or the place where the mice need to be repelled, if the back is placed, the ultrasonic waves will be weaker, the Back does not emit