dogrook Anti-Bark Collar Training Thank you for viewing! I am selling this because my dog has calmed down and I no longer need it. Operation has been confirmed. There are some scratches on the main unit and some bite marks on the strap, so I have listed it as "Slightly scratched or dirty," but there are no operational problems. Vibration anti-bark training collar, equipped with a smart sensor, 2 vibration modes and 5 sensitivity levels. - Brand: dogrook - Color: Black/Pink - Function: Vibration anti-bark training collar - Sensor: Smart sensor - Modes: 2 vibration modes - Sensitivity levels: 5 sensitivity levels Everything in the photos is included. It will be simply packaged (bubble wrap) and shipped via Mercari delivery. Please consider this item if you understand that it is a used item. If you have any questions, please feel free to ask before purchasing.