2026 Duotone ePart eHarness Battery Box bfday4 Prone Foiling / Downwind /

Prone Foiling / Downwind / Wake Foil / Wing Foil

In addition to the center channel

Pitch stable across a broad speed range

carbon fiber

2026 Duotone ePart eHarness Battery Box bfday4 Prone Foiling / Downwind /Duotone eHarness Battery Box is the waterproof housing that holds your Foil Assist batteries and the Bluetooth receiver that keeps your eRemote connected to the motor. Built from durable hard plastic, it's engineered to stay sealed under real riding conditions a sliding lock combined with a sealing ring keeps the box shut and watertight, while a Gore Tex valve on the back vents pressure without letting water in. The receiver lives right in the lid,