The HTD-10 Miniature Hydrophone is a highly sensitive and miniaturized underwater acoustic sensor designed specifically for capturing weak sound signals in water. It is widely used in marine environmental monitoring, underwater engineering, acoustic research, and military fields. This device adopts a miniaturized design, with a compact size and light weight, making it easy to install in buoys, ROVs, or other portable devices. Its high sensitivity and broadband response capability enable precise recording of various sound signals from low to high frequencies, while also possessing excellent pressure resistance to adapt to deep-sea high-pressure environments. HTD-10 is compatible with multiple interfaces, making it easy to integrate with data acquisition systems. It is suitable for applications such as marine bioacoustics, noise pollution detection, pipeline leak monitoring, underwater target recognition, and basic acoustic research. It is an efficient and reliable underwater acoustic measurement device.