Here are a few options for the WordPress post_tag description for “筆式錄音機” (Bishì Lùyīnjī, literally “Pen-Style Recorder”) in Traditional Chinese, with different focuses:

**Option 1: Short & Sweet (Concise)**

* **描述：** 輕巧便攜的筆型錄音裝置，方便記錄聲音。
* **Translation:** Lightweight and portable pen-shaped recording device, convenient for recording sound.
* **Rationale:** Straightforward, emphasizes key features.

**Option 2: Functional (Specifies Uses)**

* **描述：** 適用於會議、訪談、備考等各種場合的筆式錄音機。
* **Translation:** Pen-style recorders suitable for meetings, interviews, exam preparation, and various other situations.
* **Rationale:** Highlights the practical applications.

**Option 3: Audience Focused (Targets different user groups)**

* **描述：** 學生、記者、專業人士理想選擇的隱蔽性高的筆式錄音機。
* **Translation:** Pen-style recorders are ideal choices for students, journalists, and professionals with a high degree of concealment.
* **Rationale:** This option appeals to the kind of target users who might want to purchase such a device.

**Option 4: Informative (Including Features)**

* **描述：** 外型如筆的錄音裝置，通常具備隱蔽性、長時間錄音及易於操作等特點。
* **Translation:** Recording devices with a pen-like appearance, typically featuring concealment, long recording times, and ease of operation.
* **Rationale:** Adds more detail to the description.

**How to Use this in WordPress:**

1. Go to the “Tags” section in your WordPress dashboard (usually under “Posts”).
2. Click on the tag “筆式錄音機”.
3. Find the field labeled “Description”.
4. Paste one of the descriptions above into the description field.
5. Click “Update” to save the changes.

**Recommendation:**

The best choice depends on the context of your blog. If your blog is aimed towards informative content, I suggest Option 4. If the content is targeted to specific users, I suggest Option 3. For a simple and quick description, Option 1 will do the job.