Effective Barking Control: Utilize advanced ultrasonic technology to train your dog to stop unnecessary barking. This device is designed to emit a frequency that only dogs can hear, ensuring a disruption-free environment and your neighbors. Adjustable and Safe: Tailor the ultrasonic frequency according to the sensitivity of your pet. Safe for use on all dog breeds and sizes, this tool provides a humane way to train your pets without causing them distress. Rechargeable Convenience: Forget the hassle of constant battery replacements. Our anti-barking device comes with a rechargeable battery that lasts up to 14 days on a single charge, ensuring your training routines are never interrupted. Portable Design: Designed for outdoor and indoor use, the compact size allows you to use it in your yard, during walks, or in any indoor setting, making it a versatile tool for all your dog training needs. Colour: Black Material: Plastic Package Contents: 1 x Adjustable Ultrasonic Dog Trainer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.