AOI Underwater Port 30mm Extension Ring AX Port Mount Drones 5 hours for a full

5 hours for a full charge

Extendable AF/MF button thumb lever for back button focus

vertical mounting buckle and thumb screw

built-in battery level indicator

AOI Underwater Port 30mm Extension Ring AX Port Mount Drones 5 hours for a fullAOI 30mm Extension Ring for AX Port Mount Housing Enhance your underwater photography setup with the AOI ER AX_AX 30, a precision engineered 30mm extension ring designed for the AX port mount housing system. This extension ring allows for optimal lens positioning, ensuring superior image quality and compatibility with various lens configurations. Key Features: Durable Construction: Made from PC + GF (polycarbonate + glass fiber) for enhanced strength