Material: ABS Power: 5W Voltage: AV 90V-250V Frequency: 50Hz-60Hz Size: 60x60x21.5mm Plug-In: US, EU Gear 1: The initial frequency of the buzzer is 25KHz, and then it evenly increases to 65KHz, which takes 3 minutes, and then starts to cycle the frequency change of 25-65KHz. Gear 2: The initial frequency of the buzzer is 15KHz, and then gradually decreases to 10KHz, and then increases from 10KHz to 15KHz. This cycle takes 3.2 seconds cycle. Specifications: [1]The ultrasonic will make pest feel uncomfortable and run away. [2]The ultrasonic pest repeller is adopted the quality ABS plastic material for the shell. Good touch feel, sturdy and durable. [3]The pest repeller product is adopted the advancing ultrasonic technology. Non-toxic, safe and effective! It wont cause any harm to your families health. [4]Smell-less and flavorless. It repels pest, does not kill pest. Low electric power consumption. Environment-friendly. [5]The pest repeller is widely used in home, warehouse, shop, hotel, hospital, office, garden, grain depot and so on. Package Included: 1 or 2pcs Ultrasonic Mosquito Insect Repellent Notes: Why choose us: 1. No any noise for driving pest. 2. Repellering many kinds of pests continuously and Powerfully. 3. Easy to use: Just plug in. 4. 100 percent Safe and economical: noiseless and no radiation, safe for pregnant woman and baby to use 5. Pack of 6: package solve all rooms EFFECT TIME: ⭐Ultrasonic is an expulsion process ⭐3-5 : Mice, cockroaches are eager to interfere with their physiological and nervous systems for the ultrasound, the creatures in the dark will be forced out. ⭐2-3 weeks