The International Association of Animal Behavior Consultants released a position statement warning against the Garmin Delta Smart and other smartphone-controlled training devices. "We believe this device has the potential to cause harm to dogs and should not be recommended by behavior consultants, trainers, or used by members of the public. This is because both Bluetooth and smartphones have the potential to introduce excessive latency. Latency is the delay between inputting something into a system, and the system’s output." Click on the attachment for the full statement.