Introducing the REcho 680, a groundbreaking advancement in underwater technology. This cost-effective, forward-looking multibeam sonar system is engineered to meet the needs of contemporary marine exploration. Featuring a dual-frequency, multibeam design, the REcho 680 provides exceptional value for underwater navigation and imaging. Its dual-frequency capability enables detection of both near-range and long-range targets, and its compact size ensures easy installation on various underwater robotic platforms.