1.NEW 2 in 1 Auto Remote Anti Barking Devices 2024 upgrade Barking Stop device add a remote to control whether it works on dogs.Dog Barking Silencer uses ultrasonic technology to produce a gentle effective highfrequency sound that calms the dog.With automatic mode,it senses the dog's sound.Once the dog stops barking, the ultrasonic barking controller automatically stops emitting ultrasonic waves.You can record your voice and play the recording to correct your dog's bad behavior. 2.3 Modes Anti Bark Devices The antibarking device has 3 Modes(ultrasonic/REC play/Alarm sound).The ultrasonic mode emits 1030KHz ultrasonic waves to stop your own dog or your neighbor's dog from barking.You can set the most appropriate mode for your environment.If your dog is used to your voice,you can switch 'REC play' to give your dog prerecord commands.If you're dealing with a stubborn dog, you can use an alarm sound to stop inappropriate barking during the day. 3.Up to 33FT Bark Deterrent 600FT Remote Range After testing, this anti bark device has a good antibarking effect within 33 feet and can be used indoors and outdoors.Our dog anti barking devices provide dog bark control and stop actions like fighting, digging, chewing furniture and other bad behavior.Persistence and patience are key, and remember to reward your furry friend when performing dog training and behavioral aids. 4.Rechargeable Dog Bark Deterrent Device This ultrasonic bark control device is equipped with a rechargeable lithium battery that can be used up to 30 days after 45 hour charge.Save you endless trouble and battery investment.The shell is strong and durable and the IP45 waterproof design is not constrained by raining weather.It can be hung/mounted on a tree, wall, or fence post to stop barking anywhere indoors or outdoors.