Using this MP4 player is easy. First, insert a TF card if you want to expand the storage. Then, turn on the device using the power button. You can navigate through the menu using the buttons to select different functions like playing music, videos, or accessing the e - book feature. To use the FM radio, make sure the earphones are plugged in as they act as the antenna. For recording, just find the recording option in the menu and start. When it comes to charging, use a suitable charger for the lithium battery. Keep the device away from water and extreme temperatures. If the screen gets dirty, use a soft, dry cloth to clean it. Don't overcharge the battery and avoid dropping the device to prevent damage.