Insufficient magnetic holding
"I didn't buy the cap alone, but the complete kit with the expander. As much as the expander system seems to me to be well designed and qualitative, I'd have more reservations about the cap's magnetic system. The Aheadset plug is made of pressed sheet steel (most Ah. plugs are made of aluminium), and the btr screw has a standard 6mm diameter. Verified weight: 18g Although the cap fulfils its role perfectly, the magnetic cover that covers the Ah. cap to conceal the screw head doesn't hold in place sufficiently, and at the slightest friction, it will be moved, risking losing it, and without this cover the cap is very ugly. So there's no point in adopting this unreliable product."
