HKM-057747 Handheld Ultrasonic Dog Trainer - Effective Up to 6m, Compact ABS DesignIntroducing the HKM 057747 Handheld Ultrasonic Dog Trainer, your go to solution for effective canine training. Designed with both form and function in mind, this compact device features a sleek gray aesthetic and measures 1. 5 x 3. 1 x 3 cm, allowing for easy handling and portability during your training sessions. With a reliable operational range of up to 6 meters, the HKM 057747 enables you to effectively communicate with your dog without the need