Stealth Frame

Your Frame is a special design Made of a Arandur alloy.

Silent Approach. Your frame is designed so that the sound that your parts sounds are bounced back upon themselves canceling out the sound. You can also adjust your body to reduce the silence around you to help you camouflage with the ambient.
Stealth. Gives you Advantage on all Stealth checks based on sound. If combined with Stealth Composite Plating you have Advantage on all stealth checks.
Strange Shape. Cannot mount anything heavier than light armor to the frame.