The Ultrasonic Bark Control Device is a safe, easy-to-use training tool combining a whistle, clicker, and training collar in one. Featuring two ultrasonic modes (25kHz & 23–27kHz) with LED flash, vibration buzzer, and 7 correction settings, it effectively curbs barking and bad behavior up to 50 feet away. The Type-C rechargeable battery provides 45 days of use per charge. Compact, ergonomic, and travel-friendly—perfect for gentle, consistent dog training anywhere.