Perfect Match: This battery side door is compatible with HERO 9/10/11/12 Black Action Camera. Function: Battery door provides a Type-C port for charging or connecting the device without removing the battery cover. And the Battery is covered by the side door to avoid falling. Features: A high-density rubber pad keeps the battery in good contact. No tool required, convenient to open and close. Material: The cover is made of and ABS. Protects your camera and good at heat dissipation. Usage:Suitable for Vlog / Interviews / Time-lapse photography / Continuous recording. Colour:Black Material:Plastic Package Contents: 1x Side Battery Cover for Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.