Effectively manage your dog's barking with this advanced Dog Barking Deterrent Device, designed for long-lasting use and high performance. Crafted from durable ABS material and powered by a built-in 300mAh lithium polymer battery, this device is USB rechargeable, providing up to 12 days of normal use after just 1 to 2 hours of charging. The low power indicator conveniently alerts you when the battery needs recharging, ensuring uninterrupted training sessions. Key Features: · Long-Lasting Battery Life: Equipped with a 300mAh rechargeable lithium polymer battery that fully charges in 1 to 2 hours, delivering approximately 12 days of regular use. The low power indicator lights up red when the battery is running low, keeping you informed. · Ultrasonic Bark Deterrent: Emits a 25kHz ultrasonic sound that captures your dog’s attention and discourages excessive barking by creating an uncomfortable but harmless sensation, promoting better behavior. · Three Adjustable Frequency Modes: Features three different ultrasonic wave settings—including fluctuating, stable, and irregular frequencies—allowing you to customize the deterrent sound to prevent your dog from becoming accustomed to a single frequency. · Convenient Outdoor Use: Designed with a 16.5-foot effective control range and includes an adjustable wrist strap for comfortable handling during outdoor walks and training, helping maintain good behavior in public environments. · Beep Function Button: Includes a beep sound option that allows you to train your dog using a conditioned response, providing an alternative to ultrasonic signals for stopping unwanted behavior without discomfort. Specifications: · Item Type: Dog Barking Deterrent Device · Material: ABS · Battery Type: Built-in Lithium Polymer Battery · Battery Model: 602025 · Battery Capacity: 300mAh Package Includes: · 1 x Dog Barking Deterrent Device This Dog Barking Deterrent Device combines durability, portability, and effective ultrasonic technology to provide a humane and convenient solution for controlling your dog's barking. Ideal for both indoor and outdoor training, it helps foster better behavior while ensuring ease of use and long-lasting performance.