| GUI features | Action |
| a. Video | 1. Videos will be present |
| 2. Video will not be present | |
| b. Media sound | 1. Adjust the sound level to “sound on” |
| 2. Adjust the sound to “sound off” | |
| 3. Adjust the sound to auto adjusted | |
| c. Font | 1. Adjust the font to “medium” |
| 2. Adjust the font to “big” | |
| 3. Adjust the font to “small” | |
| d. Brightness | 1. Adjust the brightness level to user preference |
| 2. Adjust the Brightness level to auto adjusted | |
| e. Voice input | 1. Enabled |
| 2. Not enabled | |
| f. Background theme | 1. Optional theme(Blue, Red) |
| 2. VIP account interface | |
| 3. Unchangeable color―grey | |
| 4. Unchangeable color―pink | |
| g. Homepage | 1. Picture style |
| 2. Plain text style (detailed classification) | |
| h. Tutorial | 1. Display |
| 2. Not display | |
| i. Item description | 1. Sound |
| 2. No sound | |
| j. Picture | 1. Present picture |
| 2. Not present picture | |
| k. Welcome page | 1. Present welcome page when opening the app |
| l. Voice command | 1. Enabled |
| 2. Not enabled |