Introducing our advanced Dog Trainer & Protector, a comprehensive solution for bark control and canine behavior improvement. This device features two ultrasonic modes with a frequency range of 23-30 kHz, along with a sound mode to get your pet's attention. What sets it apart is the triple emitter, which emits ultrasonic waves from three points for broader coverage. Suitable for dogs weighing 5 to 120 lbs, aged 6 months to 8 years, it offers a 49-foot range, a blinking flashlight for nighttime walks, and auto-shutoff after 10 seconds of inactivity. Portable and long-lasting, it's the perfect tool to enhance your dog training experience.