indoor mosquito repellent, mosquito repellent, mosquito repellent device, mosquito repellent plug, electric mosquito plug, mosquito repellent, ultrasound, mosquito plug, insect repellent Upgraded Version of Ultrasonic Insect RepellentUltrasonic Mosquito Killer Plug, 45mm diameter speaker. 18 frequencies of sound waves in all directions 360 degrees, Intelligent frequency conversion stimulates the sensory system of mosquitoes, Effectively repels insects, ants, mosquitoes, flies, cockroaches, mice, bats and other pests. Safety: Ultrasonic Anti Mosquito Repellent is specially designed for pregnant and infant families, It is non-toxic and harmless. The frequency of 3D surround sound waves emitted by the insect repellent, Ultrasonic frequency 2265kHz, Only affects rodents and pests, It does not emit electromagnetic waves It is absolutely safe for pregnant women, babies, family members and pets. High Quality, Energy Saving: Ultrasonic Insect Rodent Repeller is made of high quality ABS flame retardant material, which is high strength, high temperature resistant, anti-aging and durable, safe and reliable to use. Battery-free ultrasonic mosquito repellent. It consumes only 0.12 degrees of electricity per day, which is energy-saving and environmentally friendly. It is an ideal electronic mosquito repellent. Large Coverage Area: Our Mouse and Rat Ultrasound has a range of up to 120 square meters, but the ultrasonic waves cannot penetrate walls. In order to achieve the desired effect, it is recommended to place our insect repellent in each room. High Power Ultrasonic Insect Repeller is an ideal mosquito repellent device for homes, warehouses, offices, gardens, hotels and caves. Small Size and Easy to Use: Electric Indoor Insect Repellent Device size 6*6*5.5cm, small and mini, easy to carry and use. Without any tools, just insert the wall vertically, the height of the wall from the ground is 20-150cm. Click the button to turn on, double click the Blu-ray. Note: Keep it for 24 hours then turn on.