[Constitutional Practice T, a helper for various tests and learning]
- Required app for law students and high school students
- Visit https://www.usefulpen.com to learn more.
(New! T-series that supports TTS (Voice-to-Speech) function)

* Search or study condolences by freely selecting the desired law
* The app is light because it does not use the Internet (data)

1. Can effectively replace the paper book code

- It is easy to carry and you can find the necessary articles immediately
- Powerful search function by sentence number and word
- There is no need to change the code because it is updated free of charge when the law is revised
- One-click pop-up view of other articles cited in legal texts

2. Infinite repetition practice of putting key keywords in parentheses (parentheses mode)

- Effectively learn and memorize the key keywords of the relevant legal text
- Improve memorization effect by sequentially ‘hiding/showing’ the main keywords of condolences
- Repeat infinitely until memorized or mastered
* To go to parentheses mode, press and hold the ‘Search’ button at the bottom
* If you press and hold the 'question mark' button at the bottom (2~3 seconds), the usage will pop up

3. ‘Turn’ function
- Added 'Turn on' page to all previously released legal apps
: Click the index (i) button at the top right of the screen
: Go to the 'turn' page from the current condolences
: Quickly find the part you want

4. ‘Steamed’ function
- The user can easily memorize parts that are not well memorized, wrong parts, or parts that are considered important.
Enhancing learning effect by designating and intensive learning
- Can be used for various purposes as it can be saved and recalled as a wish file (unlimited number of files)

5. TTS (Speech-to-Speech) function
: Four modes of listening method support and adjustable interval, pitch, and speed between sentences
- Manual keystroke switching: listen while moving the jaw manually
- Listen to the current sentence repeatedly: Listen to the currently selected sentence repeatedly indefinitely
- Listen to the condolences you wished for: Listen to the condolences that you wished for in succession
- Continuous listening section: Set the start and end sentence numbers of the section you want to listen to and listen continuously

6. Expedited updates when laws are amended