The TRAINER200U utilizes ultrasonic correction instead of static stimulation to discourage behaviors such as barking, digging, or jumping on guests. This high frequency sound is specifically designed to be an annoyance to animals, while above a human’s range of hearing. Additionally, dual vibration modes alert your dog to the imminent high-pitched sound, so he can stop misbehaving before the sound is activated.
Unlike other ultrasonic devices, the TRAINER200U's Dual Sonic design features two ultrasonic, water-resistant speakers placed to direct the sound back towards the dog, not away, producing optimal results while keeping sound produced at a safe level.