Check the listing for details. GlossyEnd Ultrasonic Dog Bark Control Device 50ft 4 Modes Brown. Condition: New. Listed at 47.99 USD. When the dog barks, the red light flashes to show that the ultrasonic work, the green light flashes after the hibernation of the dog barking to wake up, Red light flashes when the battery is low. 【IPX4 Waterproof Safe Anti Barking Devices】The Bark Deterrent is housed in a professional IPX4 waterproof enclosure, Can withstand any bad weather, can work normally, Its robust design makes it an ideal option for outdoor settings, When barking is detected, the anti-barking device emits harmless ultrasonic waves This bark stopper has a small and lightweight appearance, You can also carry it with you for outdoor use when you are outdoors.
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