The Topsky Tianlong Xiaoyao Xing R2 is a compact, portable unmanned surface vehicle (USV) built for hydrographic surveying, environmental monitoring, and remote water-body inspection. Described by the manufacturer as a "detection ship," the R2 has a physical footprint of approximately 1.0 m × 0.55 m × 0.25 m and weighs around 25 kg, making it transportable by small teams and rapidly deployable from docks, ramps, or shoreline access points. Its dual-drive propulsion arrangement supports differential steering and improved manoeuvrability, while its construction incorporates carbon fibre and aviation-grade aluminium to balance stiffness, strength, and handling convenience. A published payload capacity of approximately 30 kg is particularly significant for a USV of this size, providing ample capacity for bathymetric sonar modules, water-quality instrument packages, GNSS receivers, or bespoke customer sensors.

With a maximum speed of up to approximately 20 km/h and an endurance of around 4–8 hours (dependent on speed, payload, and sea state), the R2 operates at the fast-portable end of the survey USV spectrum — well suited to spot checks, short-area surveys, and rapid inspection loops rather than multi-day persistence missions. The platform's portability and payload headroom make it a practical solution for bridge, dam, and port inspections; shallow-water bathymetry where crewed vessels cannot safely operate; and environmental monitoring of lakes, rivers, and reservoirs where repeatable, automated routes reduce operator exposure to hazardous conditions.