Vensmile Indoor Ultrasonic Rodent Repeller Control Mice Rat Squirrels and other pests SPECIAL DESIGNED - Vensmile rodent repeller with 2 ultrasonic speakers and 1 transducer transmit alternating ULTRASONIC SOUND and PRESSURE WAVE at three different location on device; EFFICIENTLY - Ultrasonic sound is aim at repelling rat and mice. Pressure wave is aim at repelling squirrels. We have been getting a 75% success rate on squirrels repelling; 4 MODE SWITCH - You can choose different mode to do the special job. Test, Ultrasonic, Pressure wave or dual functions working together; ECONOMICALLY & EASY TO USE - Come with a 6ft. cord adapter, no need any battery. With LED indicator shows what mode is working. SAFE & GREEN - No poison or Chemicals used to repel, safe for children and pets. No need to disposal of pest carcasses.