视频中展示了一双手正在操作一个电池盒。电池盒内装有两节银白色的电池，电池上有一些黑色的标识和文字。手部动作显示正在调整或检查电池的位置，确保它们正确安装在电池盒中。背景是浅色的，可能是桌面或工作台，整体画面简洁明了，突出了电池和电池盒的细节。
The video shows a pair of hands holding a black battery holder containing two cylindrical batteries. The hands are adjusting the position of the batteries within the holder, ensuring they are properly seated. The batteries have white labels with some text and symbols on them. The background is plain and light-colored, keeping the focus on the hands and the battery holder.
A pair of hands is holding a black and white cylindrical object with two visible spools. The object has a label marked '120' in the center. As the object is rotated, the text on the right spool gradually becomes visible, starting from '120' and changing to 'EXPOSED'. The left spool has a label marked 'START', and the right spool continues to reveal the word 'EXPOSED'. The background is a plain, light-colored surface, providing a clear view of the object and the hands holding it.