视频中展示了一双手正在操作一个黑色的电池盒。这个电池盒是打开的状态，里面装有两节银色的电池。手部动作显示这个人正在调整或检查电池的位置。背景是简单的白色，突出了电池盒和手部的动作。整个场景看起来像是在进行某种电子设备的电池更换或检查过程。
The video shows a pair of hands holding a small electronic device, which appears to be a battery holder or a similar component. The hands are manipulating the device, possibly demonstrating how it works or how to assemble it. The device has two cylindrical components that resemble batteries, and the hands are adjusting these components within the black casing. The background is plain and white, keeping the focus on the hands and the device.
A pair of hands is holding a black device with two white cylindrical components labeled 'START' and '120' in red and black text respectively. The hands rotate the device slightly, adjusting their grip and positioning. The device appears to be a film roll or similar component, with the hands carefully maneuvering it to show different angles. The background is a plain, light-colored surface, providing a clear view of the device and the hands.