Collar-mounted predation deterrents, such as devices emitting sounds or vibrations, can help restrict wandering in domestic pet cats. These deterrents are designed to discourage cats from approaching wildlife or certain areas by providing a deterrent stimulus. The effectiveness of these deterrents may vary depending on the individual cat and the specific device used. Some cats may be more responsive to the deterrent and modify their behavior, while others may be less affected or habituated to the stimulus over time. It's important to note that collar-mounted deterrents should be part of a comprehensive approach to managing a cat's behavior and reducing wandering. They should not be relied upon as the sole solution, and other measures like environmental enrichment, secure containment systems, and supervised outdoor time may also be necessary.