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WHAT IS THE BLACK TUBE ON THE BOTTOM ? — 1 Answer

by Roy, from FL, United States Asked on July 20, 2018

Name Hubsan X4 FPV RC Quadcopter w/ Live Transmitter
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Answered by Ethan C., Gear Expert, from IL, United States, on February 28, 2019

That is part of the internals of the battery box, it is not visible and does not protrude once the battery is installed.

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