Ultrasonic Pest Repeller 6 Pack,Upgraded Electronic Pest Repellent Plug in Indoor Pest Control for Insects, Mosquito, Mouse, Cockroaches, Rats, Bug, Spider, Ant

Package Includes:
6 X Ultrasonic Pest Repellents
Product specifications:
Frequency range: 10 KHz~65KHz
Input voltage: AC90V~250V / 50~60HZ
Effective range: 800~1200 Square Feet
Installation height: 30cm from the ground
Power: 2~3W

How to use:
Plug it.This pest control ultrasonic repellent can be directly plug into the AC 220V (OR 110V)
Perfect place for installation: It will be better to be installed at about 12inch away from the floor
and the installing point should be avoided from the back of the curtain, fridge and any other furniture that deterring sound waves.
How many ultrasonic repellents are enough: Since ultrasonic waves can not travel through walls, 
it will be better for you to put 1~2 insect repellents in each room insect infestation. 

Note: 
Moisture proof, waterproof
Don't clean the machine by strong impregnant, water or damp cloth. 
Use dry and soft cloth with some neuter wash to clean the machine Don't drop the machine and make strong striking on it.
Using environment temperature:0-40Centigrade.