Product Name: Electronic glass Ball Video Player, Support Ball, Creative Gift Product size: Diameter 70mm Product colors: blue, orange, white, black, pink Product material: ABS plastic + glass Product resolution: 480x480 Memory: 4GB Battery life: 2-4 hours Battery: 800mAh Description 1. Instructions for Use of Pull-out Wheel switch: When the device is off, briefly press the pull-out wheel to turn it on. When the device is on, press and hold the pull-out wheel for 3 seconds to turn it off. When the device is powered on, briefly pressing the pull-out wheel first will pause or play. Pulling the wheel to the left or right corresponds to the previous or next piece Press and hold the puller left and right for 2 seconds to increase or decrease the volume 2. Precautions Please fully charge before first use. Avoid long-term storage in high-temperature and humid environments. When cleaning, please wipe the screen and the casing with a soft cloth. Do not use corrosive solvents. 3. Give priority to playing video files within the video folder; If the video folder is empty or does not exist, the pictures in the picture folder will be automatically carouted 4. Replace the contents of video or picture folders as needed Video format: Supports MP4(resolution 480x480), different Format videos can be transcoded using the software we provide. Image format: JPG is supported. After the operation is completed, the safety -up device will take effect. Whether for personal enjoyment or as a gift for relatives and friends, it is unique and surprising 6. Whether it's recording the beautiful moments during the trip Still cherish the warm moments with family and friends All can be presented in a unique 3D form