Product Review

The advantage of Langus ultrasonic insect repellent:
Non-toxic and environmentally friendly
Safely and humanized.
It's safe for humans and pets.
No killing, just driving insects away.
No radiation, no smell, no noise.
With LED night lights, you can light up your ways in the dark.
It's convenient and simple, just plug and use.
The most cost-effective solution to keep pests away from home.

Widely repel pests:
It is effectively refused to rodents, cockroaches, spiders, mosquitoes, bugs, ants, rats, flies, worms, fleas, lizards and more insects.

specification:
material: ABS (flame retardant material)
product size: 3.5 x 2 x 2.3 inches
the power of small night lamps: < 1 w
product effective coverage: 100 ~ 150 meters square
Using voltage: 90-250 (V) AC / 50 hz - 60 hz
output frequency: 20 KHZ - 65 KHZ

Tips:
1. If you have a hamster pet at home, please stay away or do not use this insect repellent.
2. This equipment should be installed at a distance of 31 ~ 47 inches from the ground and be perpendicular to the ground.
3. Avoid carpets, curtains, refrigerators and any other furniture that blocks or adds frequency.
4. Harmful organisms increase at the start of the using date, which is normal because it means that they are leaving their habitat after being struck by the ultrasound.
5. The ultrasonic rejection device will be highly-effective after 15 ~ 20 days. Please be patient.
6. Ultrasonic cannot penetrate solid and wall, so for better effect, one unit for one room, more than one unit for larger space.