Note:
1. If you dont use it for a long time, please turn off the "Power Switch" key to turn off the machine to save power.
2. During data transmission, the connection cannot be disconnected at this time, otherwise data will be lost.
3. The "delete" operation is a permanent deletion, and the file cannot be restored. Please back up the file by yourself.
4. The battery can be charged or discharged. In order to make the battery more durable, please charge the machine in time, not when the battery is completely exhausted.