ACME AC535GP Silent Dog Whistle

The ACME AC535GP Silent Dog Whistle has received mixed reviews. One user stated that their dog did not respond to the whistle any differently than a cheaper, plastic version. They also noted that the whistle is relatively heavy and thin, which made it harder to hold in the mouth compared to the cheaper model. On the other hand, some users appreciated the whistle's design and the fact that it is made by a reputable British manufacturer. They found the whistle effective in getting their dogs' attention, despite the cap being loose and falling off easily. One user mentioned that they could only hear a faint sound, but their dog responded well to it. Another user wished that a dedicated screwdriver and a softer cap for easier adjustments were included with the purchase. Overall, the ACME AC535GP Silent Dog Whistle seems to vary in its effectiveness depending on the individual dog's response. While some found it to be an improvement over cheaper options, others did not see a significant difference.