Selecting a Counter Drone Gun requires a focus on frequency coverage, effective range, and battery endurance. Ensure the device covers standard civilian bands like 2.4GHz and 5.8GHz, as well as GNSS (GPS/GLONASS/Galileo/Beidou) for navigation jamming. For advanced threats, look for units that support 433MHz and 900MHz bands. The effective jamming distance should ideally be 1.5km to 2km to provide a sufficient security buffer. Additionally, prioritize ergonomic designs with a weight under 6kg and hot-swappable batteries to ensure continuous operational readiness during extended missions.