Charging adapter seat, not need to disassemble, charging and use Bottom foldable two cards and with 1 / 4 screw hole adapter rich expansion of the adapter Bottom two card + 1 / 4 positioning, transfer and more anti-reversal Aluminum limit bilateral snapping, quick disassembly, connection is more tight real machine modeled concave design fit the body, combined with tight anti-rotation; aluminum technology: anodic oxidation