Key features:

1. 1:1 real machine mold opening, perfect size for the camera body
2. Rechargeable battery cover design, reserve a charging port, not only can replace the battery at any time, but also charge GoPro or connect an external microphone
3. Can be connected to filter, standard type 52mm filter adapter ring, external filter can be connected if necessary

Package Included:
Plastic cage*1,
ND filter adapter*1,
Lens protector*1,
Charging base*1