2 Pack Dog Bark Deterrent Devices, Rechargeable Anti-Barking Device for Dogs, 50ft Long-Range Ultrasonic, Correct Your Dog's Bad Behavior at the Push of a Button,Suitable for Small, Medium, Large Dogs

An alternative to bark collars, shock collars, and bark whistlespainless and faster at correcting your dogs behavior. | Anti-Bark Device: The 2-in-1 Ultrasonic Dog Trainer is designed for effective training and bark control without the pain of shock collars. It emits ultrasonic waves to reduce barking, digging, scratching, biting, and jumping on furniture. | Safe & Effective Modes: Features a 25kHz fixed frequency that is undetectable to humans but effective for dogs. With no shock, vibration, noise, or physical contact, its completely safe for dogs of all sizes. | Multi-Function & Easy Operation: Not only trains your dog, but its flash mode also deters aggressive or unfriendly dogs during walks, jogs, or bike rides, keeping you and your dog safe. | Portable & Long-Range: This compact device has a 50ft control range, making it perfect for indoor and outdoor use. Includes a wrist strap for added convenience. | Fast Charging & Long Battery Life: Equipped with USB fast charging, it fully charges in just 1 hour and lasts up to 60 days. Spend more time training and less worrying about frequent recharging.