Bark Stop Control Outdoor Indoor Ultrasonic Dog Pet Anti Barking Training Device Collar

Ultrasonic mode can stop your dog from barking silently, which is ideal for night or quiet environment use
Be activated accurately by your own dog's bark vibration, and can not be activated by other dogs' barking
Audible mode creates harsh buzz to prevent your dog from barking
Adjustable collar is suitable for most medium and small dogs, and lightweight is convenient to carry
?Low power consumption, it just requires 2pcs AG10 button batteries (not included)