brand new and high quality Features: Effective for all pests: flea,rodents,roaches,mice,insect, mosquitoes, ants,rats,bed bugs and more Non-toxic,eco-friendly,chemical free, safe for human & pets. Wide application: home,warehouse, store,hotel,hospital, office,factory, etc. Intelligent nightlight of this pest repeller builds a warm and comfortable environment for you. Instruction (Indoor Use Only) 1.This machine should be installed at 30 centimeter away from the floor and vertical to the floor 2.This pest repeller should be avoided to be in the back of a huge obstacle such as curtain,fridge and sofa. 3.This ultrasonic pest repeller should be avoided in the front of curtains,cloth sofa or other furniture made from cloth. 4.Use one unit per average sized room. Additional units will be required in a larger areas. 5.It's normal that the mouse and vermin will increase at the beginning of the using days because they are getting away from the living place after the attack of the ultrasonic. Usually, it will takes 3~4 weeks to notice results. Specifications: Material: ABS Size: One Size Size: 5.8cmx9.8cm/2.28inx3.86in Standard Wall Plug-In(US Plug) Color:White Quantity: 1 Pc Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1Pc x Mosquito Repeller (No retail package)