• Anti-bark device for dogs that automatically detects barking and emits safe ultrasounds to prevent excessive barking. • Three adjustable frequency modes: pulsed ultrasound at 23-25-27 KHZ, continuous ultrasound at 25 KHZ, and variable frequency ultrasound at 25 KHZ, adapted to different types of dogs. • Two powerful ultrasonic speakers for greater effectiveness in reducing barking compared to single-speaker devices. • Effective range of up to 50 feet, ideal for indoor and outdoor use. • Compact, lightweight, and portable design, easy to install in different locations. • IP45 waterproof material that protects the device from splashes and moisture. • Fast charging in 3 hours and up to 30 days of standby time. • LED indicators for power on, power off, and battery level. • Includes USB cable and user manual in English. • Not recommended for aggressive dogs, dogs with hearing problems, or situations with multiple dogs barking at the same time. • Change the mode every 07-10 days and charge before daily use for optimal performance.