Expansion and accessory versatility: The expansion box provides multiple 1/4inch and 3/8inch threaded holes, 1/4inch positioning holes, a cold shoe, and other expansion interfaces to attach additional accessories and expand functionality as needed. Precise hollowed design with no interference: The precise hollowed design keeps the battery compartment accessible and does not block body interfaces or a fill light, ensuring ongoing compatibility with existing gear. Broad compatibility and rapid switching: Compatible with standard tripods and stabilizers, it allows quick switching between handheld, stabilizer, and tripod setups to adapt to different shooting scenarios. Secure mounting and protection: The bottom screw is tightened securely to provide a stable fit, protecting against loosening and ensuring reliable mounting. Use scenarios: Onlocation interview or runandgun shooting: mount a microphone, monitor, or lighting via the available holes and cold shoe, then switch rapidly between handheld use and tripod for stable footage as needed. Stabilizer workflows: attach a monitor or other accessories through the threaded holes on a stabilizer rig, and switch to handheld when dynamic movement is required. Studio or tabletop product shoots: add lighting, support equipment, or other accessories using the expansion interfaces, then transition to tripod mounting for steady, framed shots.