Household Environmental Protection Anti-Cockroaches, Moths And Rats Ultrasonic Anti-Insect And Anti-Rat Device Mosquito Device,Quantity: 4

Ultrasonic insect repellent: Ultrasonic can stimulate the brain and auditory nervous system of pests, and keep your home away from all kinds of pests.
Wide coverage: its ultrasonic wave can cover an area of 80 to 120 square meters. Because ultrasound cannot penetrate walls and solid objects, it is recommended to place one in each room.
Reduce power consumption: keep away from dead pests, odors and insect bodies, and save a lot of money without batteries.
Quiet and effective: the ultrasonic insect repellent works with low-frequency ultrasound, which is hard for human to hear. But it is very effective for rodents and pests. Ultrasound can make them leave your home quickly!
Safe use: The pure physical mosquito repellent is designed and developed for the frequency of all pests without worrying about the impact on pets or people.

WARNING: BUTTON/COIN BATTERIES ARE HAZARDOUS. KEEP OUT OF REACH OF CHILDREN

Swallowing or placing a lithium button battery inside any part of the body can cause severe injury or death in 2 hours or less.
Swallowing or placing a non-lithium button battery inside any part of the body can cause serious injuries.
Medical attention should be sought immediately if you suspect that your child has swallowed or placed a button battery inside any part of the body.
Call the 24-hour Poisons Information Centre on 13 11 26 (Australia) or 0800 764 766 (New Zealand) for fast, expert advice.
Regularly examine devices and make sure the battery compartment is correctly secured, e.g., that the screw or other mechanical fastener is tightened. Do not use if the compartment is not secure.
Dispose of used batteries immediately and safely out of reach of children.