The 2025 4-in-1 Ultrasonic Dog Bark Deterrent Devices offer a safe and humane way to stop barking and unwanted behavior. Combining dual ultrasonic modes (24–31KHz), a flashing LED strobe, training beep, and laser pointer, this dog barking deterrent works on dogs, cats, and even small animals like rats. With up to 60FT coverage, this bark control device is ideal for indoor or outdoor training. The SONIC mode (24–26KHz) is perfect for general barking, while MAX mode (25–31KHz) handles stubborn barkers. Made from durable ABS with IPX6 waterproof protection, this anti bark device can withstand rain, splashes, and rough handling — great for parks, yards, and travel. Its compact 12×4.5×4.5 cm size makes it easy to carry anywhere. Powered by a 2200mAh rechargeable battery, it delivers over 20 hours of use with USB-C charging and a low-power indicator. This portable bark deterrent is perfect for training at home, in the park, or on trips. A safe alternative to shock collars, this dog barking silencer uses sound and light cues for positive reinforcement, making it suitable for small, medium, and large dogs. Extra features include a bright flashlight and COB rear light for nighttime walks, making it not just an ultrasonic dog bark deterrent but also a practical ultrasonic dog repeller for all-day use.