I purchased this but am selling it because I don't use it. This is a valuable product that is no longer in production. This is a charging case specifically for the Osmo Pocket, featuring an easy-to-use rotary opening and closing design. It has a capacity of 1500mAh and can easily store the Osmo Pocket, allowing for easy charging on the go. The charging case can store the Osmo Pocket itself, as well as two microSD cards, four ND filters, and two smartphone adapters. Specifications: Size: Φ47.9 × 147 mm Weight: 169g Battery Capacity: 1500mAh Compatible Products: Osmo Pocket