Description: 1. For indoor use only. Do not keep in high temperatures or wet areas. 2. Before use please confirm power supply of AC 110V-220V. 3. This product can work continuously year round. 4. To repel mice place 20-30cm from the ground; To repel mosquitoes place 80-100cm from the ground; To repel other pests make sure the horn is aimed directly at the desired area. 5. For best results use for three to four weeks. You may see more pest activity at first. Functions: 1 .This product is mainly used for expulsion of mouse, mosquito,cockroach, while of acarid, bedbug, flea, ant, spider, silkworm moth, etc., also have certain drive and inhibitory effect. 2 .This product can be widely used in household, hotel, restaurant,storehouse, supermarket, hospital, office, etc 3 .The effective range of this product under the open environment is controlled about 200 square meters, usually one family can be installed 1-2 pcs (suggestion: just began to use, or mouse / pest damage is severe, each room one set). Specification: Material: Plastic Voltage: AC110V-230V/50HZ Average power consumption: 6W Electromagnetic wave frequency: 0.8HZ-8HZ Ultrasonic wave frequency: 1 band:25-70KH2; 2 band:10-70KHZ (bionic wave) The effective protection range: 200 square meters under open environment Dimension: approx. 9x6x3.3cm/3.54x2.36x1.30 inch Package Includes: 1 X Elite Edition Pest Repeller 1 X Instructions Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size.