I obtained this item, but ultimately never used it. I only opened the package. I haven't even tried charging it, so the battery's condition is unknown. To use it, you need an Android or iOS app. Manufacturer's description: This device automatically tracks people and objects appearing on your smartphone screen, acting like a dedicated cameraman by always filming them from the front, even when they move. It rotates 360 degrees, so you don't have to worry about the camera's position. It automatically takes a photo when the movement stops. It's great for creating videos and live streaming for SNS platforms like TikTok, Instagram, and YouTube. [Reference Retail Price] 7,678 yen (tax included)