Dog Barking Control Device

🐕Dual-Head Ultrasonic Dog Bark Deterrent: MODUS handheld dual-head barking control devices, has enhanced ergonomic design and for comfort in your hand, and utilizes two ultrasonic emission ports, could send changeable and higher ultrasound which can be customized to each dog; this customarily enables devices to be used to prevent barking on a variety of breeds 🐕Multiple Function Modes: The device offers 4 different modes. The dog barking deterrent will emit a strong SOS flash and ultrasound to prevent dog barking while you choose ultrasonic drive mode; sound warning mode will emit a ‘beep’ sound like a dog whistle to stop dog barking; fixed frequency mode will emit 25 khz ultrasonic waves; and the forth mode will release irregular ultrasonic waves which are designed to prevent your dog from becoming desensitized to the dog barking device 🐕Wide Control Coverage: The dog control barking device can be used indoors and outdoors and has a maximum operating range which can reach 16.4 ft; the device is suitable for dogs between 6 months to 8 years old and except for those with hearing impairment or loss of hearing function