Item Type: Mosquito Repeller. 1 x Ultrasonic Mosquito Repeller. With multiple functions, ultrasound alone, one of the most safe and various electronic insect repellent. Plug the machine into the 5-12 vusb power socket, you can see the machine's red indicator light is on, then the machine starts to work normally, it will emit series of audio; when the green indicator flashes.
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