DJI Osmo Multifunctional Battery Case for DJI Action 4/3

Stores three batteries and two microSD cards*. Intelligently fast charges three batteries, and can be used together with those batteries as a power bank to charge other devices like a smartphone. In The BoxOsmo Action Multifunctional Battery Case × 1 SpecificationsDimensions: 116.2×59.2×22.9 mm (L×W×H) CompatibilityOsmo Action 4Osmo Action 3*Batteries and SD Card pictured not included