SBRMART Advanced Pest repeller (4pcs)

Rat Cockroach Pest Reject Repellent . This ultrasonic pest repeller is the latest version, which use an upgraded chip that is more powerful which make pests and rodents are harder to immunize than before. Work well on mouse, cockroach, spider, bedbug, mosquitoes, insect, rat, rodent, flies, ant, fleas and more pests. The Ultrasonic Pest Repellent is effective for an area up to 800~1200 Square Feet. Please note that ultrasonic waves cannot travel through walls,we suggest using at least 1 device for each room, and at least a couple units for areas where pests problems are serious. Typical results can take 2 - 4 weeks depending on the severity of the pests infestation. The device does need to be switched off for being effective it needs to be on all day long