DJI Osmo Action - Multifunctional Battery Case
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 your Smartphone.
Dimensions: 116.2×59.2×22.9 mm (L×W×H)
Weight: 110 g
Osmo Action 4
Osmo Action 3
In the Box:
1x Osmo Action - Multifunctional Battery Case