The U.S. Navy is seeking small businesses to develop the F0-Wideband Acoustic Receiver and Source (F0-WARS) Sonobuoy, aimed at enhancing anti-submarine warfare (ASW) capabilities through improved acoustic data collection on enemy targets. The objective is to create an air-deployable sonobuoy that can operate in both shallow and deep waters, capable of collecting active target strength data in the F0 frequency range while meeting specific size and power requirements. This innovative technology is crucial for the Navy and other Department of Defense agencies to achieve advanced ASW measurement capabilities, with the solicitation set to open on April 23, 2025, and close on May 21, 2025. Interested firms must provide Phase I feasibility documentation to demonstrate prior research and development related to the topic, with further details available at the official SBIR website.