The K-9 BSD Ball Dropper 1 with Velcro can be attached to a K-9 handler's vest that has been modified with a piece of velcro to attach it to.
It is an excellent tool for focused heeling.
The remote has three buttons: one for ball release, one for tone, and one for tone and ball release.

Further Examples of Use:
• Send ahead with and without "Down"
• Send ahead through water (for hunters)
• Motivation for physical training
• Pole work Agility
• Passive guarding
• Aktive guarding
• Retreiver und Dummy Training sending north, south, east, west
• Police K9 training: searching for drugs and other articles.