Features: 1¡¢Silent design, no noise, only special sound sensitive to mice / mosquitoes, which can not be heard by human ears / animals, and will not cause any interference to life. 2¡¢It is safe and environmentally friendly to expel mice, without any harm to humans and pets, safe and healthy, and without radiation. 3¡¢The operation method is simple, and it can be widely used in school, living room, bedroom, warehouse and other scenarios. 4¡¢Large?scale variable frequency sound waves cover up to 80©O, suitable for most places to use. 5¡¢Made of premium ABS material, which is non-toxic and environmental-friendly. Condition: 100% Brand New Item Type: Ultrasonic Mouse Repellent Material: ABS Color: White+Black Size: Approx. 12.2x7.2x5cm / 4.8x2.8x2.0in Weight: Approx.96g/3.4oz Voltage: 110-230V Frequency: 50/60Hz Power: ¡Ü3W Ultrasonic Frequency: 22-70KHz Sawtooth Waves Frequency: 10-70KHz Scope of Application: 80©O in open environment Package Included: 1 x Ultrasonic Mouse Repellent 1 x Instruction Manual