Effective range up to 100-160 square metre Application place: 1. It applies to the places which could not use poison bait and pesticide, eg: Flour processing factory, food processing factory, rice factory, pharmaceutical factory, animal feed factory, granary, etc. 2. It applies to the places which are harassed by mouse and pests, eg: Theater, restaurant, supper market, department store, hotel, hospital, etc. 3. It applies to the places which are always bitten by mouse and pests, eg: Drug-store, haberdashery, food shop, furniture store, etc. 4. It applies to villa, house, room used air condition, dining-room, storeroom, etc. 1. This repeller should be installed at 20-80 centimeter away from the floor, and should be vertical to the floor and plug to the power socket. 2. The installing point should be avoided from carpet, curtain etc attaching sound material, or else decrease of the sound pressure will do harm on the pest effect. 3. It is normal that the mouse and pests will increase at the beginning of the using days because they will get away from their living place after the attack of the ultrasonic. 4. This repeller can be plug directly at AC power socket. (Power range: AC90 V -250V. Frequency: 50Hz-60Hz) 5. Caution: Moisture proof, waterproof 6. Don't clean the repeller by strong impregnant, water or damp cloth. Use dry and soft cloth with some neuter wash to clean the repeller 7. Don't drop the repeller and make strong striking on it. 8. Using environment temperature: 0-40 C 9. To increase the effect, you should use several sets of repeller at the warehouse or good pile-up, several rooms. Product Size: 10cm*9cm*6cm 128g/PCS, 72PCS/CTN Net weight: 9.2(kg) Gross weight: 10(kg). Dimension: 470X410X440mm