K9-Barkless™ – Dispositif Anti-Aboiement pour Chien – Dresseur à Ultrasons

This device uses targeted ultrasonic frequencies to train dogs without pain. It has three modes: ultrasonic, beep, and flashlight. Effective up to 10 meters and lasts up to 3 months on a 4-hour charge.

• The description claims the method is effective and pain-free for training dogs.
• The description claims it can stop barking instantly.
• The description claims it can prevent aggressive behavior during walks.