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The IFUNGOO Y04 is a compact underwater electric thruster designed for SUPs, kayaks, inflatable boats, and small fishing vessels. Weighing only 1.24kg, it delivers 8kgf maximum thrust from 330W rated power, with an IP68 waterproof rating suitable for seawater use. Engineered with an aluminum motor housing, carbon fiber stabilizing fin, and self-protection anti-entanglement propeller system, the Y04 combines lightweight portability with durable build quality. It features 4 forward gears and 1 reverse gear, providing precise speed control from 1 to 7.6 km/h, ideal for solo or dual riders navigating calm lakes, coastal waters, or shallow conditions. The kit includes a wireless wrist remote controller, magnetic cable, charger, and elastic rope, with optional B1, B2, or B3 LiFePo4 battery packs for flexible power capacity. International certifications include CE, FCC, UN38.3, UL, and ROHS compliance. Compatible with multiple paddleboard models including Moonlight, Twin-hull, and DAMA SUPs, the Y04 offers a smooth, quiet, and reliable propulsion solution for recreational paddlers and anglers.