diff --git a/client/i18n/locales/chinese-traditional/intro.json b/client/i18n/locales/chinese-traditional/intro.json
index d4b240c8290..82ca9c7ee73 100644
--- a/client/i18n/locales/chinese-traditional/intro.json
+++ b/client/i18n/locales/chinese-traditional/intro.json
@@ -1987,6 +1987,13 @@
           "You'll practice concepts like <code>alt</code> attributes and aria roles."
         ]
       },
+      "lab-multimedia-player": {
+        "title": "Build a Multimedia Player",
+        "intro": [
+          "In this lab, you'll build a multimedia player.",
+          "You will practice working with the <code>audio</code> and <code>video</code> elements, the <code>controls</code> attribute, and the <code>aria-label</code> attribute."
+        ]
+      },
       "review-html-accessibility": {
         "title": "HTML Accessibility Review",
         "intro": [
diff --git a/client/i18n/locales/chinese/intro.json b/client/i18n/locales/chinese/intro.json
index ece0f804cb0..e5e6b7a9a1c 100644
--- a/client/i18n/locales/chinese/intro.json
+++ b/client/i18n/locales/chinese/intro.json
@@ -1987,6 +1987,13 @@
           "You'll practice concepts like <code>alt</code> attributes and aria roles."
         ]
       },
+      "lab-multimedia-player": {
+        "title": "Build a Multimedia Player",
+        "intro": [
+          "In this lab, you'll build a multimedia player.",
+          "You will practice working with the <code>audio</code> and <code>video</code> elements, the <code>controls</code> attribute, and the <code>aria-label</code> attribute."
+        ]
+      },
       "review-html-accessibility": {
         "title": "HTML Accessibility Review",
         "intro": [
diff --git a/client/i18n/locales/espanol/intro.json b/client/i18n/locales/espanol/intro.json
index 7de881869c9..5cecbb3b60d 100644
--- a/client/i18n/locales/espanol/intro.json
+++ b/client/i18n/locales/espanol/intro.json
@@ -2001,6 +2001,13 @@
           "You'll practice concepts like <code>alt</code> attributes and aria roles."
         ]
       },
+      "lab-multimedia-player": {
+        "title": "Build a Multimedia Player",
+        "intro": [
+          "In this lab, you'll build a multimedia player.",
+          "You will practice working with the <code>audio</code> and <code>video</code> elements, the <code>controls</code> attribute, and the <code>aria-label</code> attribute."
+        ]
+      },
       "review-html-accessibility": {
         "title": "HTML Accessibility Review",
         "intro": [
diff --git a/client/i18n/locales/german/intro.json b/client/i18n/locales/german/intro.json
index 78652b44d87..6de3b5d0b08 100644
--- a/client/i18n/locales/german/intro.json
+++ b/client/i18n/locales/german/intro.json
@@ -2001,6 +2001,13 @@
           "You'll practice concepts like <code>alt</code> attributes and aria roles."
         ]
       },
+      "lab-multimedia-player": {
+        "title": "Build a Multimedia Player",
+        "intro": [
+          "In this lab, you'll build a multimedia player.",
+          "You will practice working with the <code>audio</code> and <code>video</code> elements, the <code>controls</code> attribute, and the <code>aria-label</code> attribute."
+        ]
+      },
       "review-html-accessibility": {
         "title": "HTML Accessibility Review",
         "intro": [
diff --git a/client/i18n/locales/italian/intro.json b/client/i18n/locales/italian/intro.json
index d1f14711b0e..c6b0244fb7f 100644
--- a/client/i18n/locales/italian/intro.json
+++ b/client/i18n/locales/italian/intro.json
@@ -2001,6 +2001,13 @@
           "You'll practice concepts like <code>alt</code> attributes and aria roles."
         ]
       },
+      "lab-multimedia-player": {
+        "title": "Build a Multimedia Player",
+        "intro": [
+          "In this lab, you'll build a multimedia player.",
+          "You will practice working with the <code>audio</code> and <code>video</code> elements, the <code>controls</code> attribute, and the <code>aria-label</code> attribute."
+        ]
+      },
       "review-html-accessibility": {
         "title": "HTML Accessibility Review",
         "intro": [
diff --git a/client/i18n/locales/japanese/intro.json b/client/i18n/locales/japanese/intro.json
index a6dce3a24c8..f872e6b0ba5 100644
--- a/client/i18n/locales/japanese/intro.json
+++ b/client/i18n/locales/japanese/intro.json
@@ -2001,6 +2001,13 @@
           "You'll practice concepts like <code>alt</code> attributes and aria roles."
         ]
       },
+      "lab-multimedia-player": {
+        "title": "Build a Multimedia Player",
+        "intro": [
+          "In this lab, you'll build a multimedia player.",
+          "You will practice working with the <code>audio</code> and <code>video</code> elements, the <code>controls</code> attribute, and the <code>aria-label</code> attribute."
+        ]
+      },
       "review-html-accessibility": {
         "title": "HTML Accessibility Review",
         "intro": [
diff --git a/client/i18n/locales/korean/intro.json b/client/i18n/locales/korean/intro.json
index 5578a2a5577..65471a62633 100644
--- a/client/i18n/locales/korean/intro.json
+++ b/client/i18n/locales/korean/intro.json
@@ -2001,6 +2001,13 @@
           "You'll practice concepts like <code>alt</code> attributes and aria roles."
         ]
       },
+      "lab-multimedia-player": {
+        "title": "Build a Multimedia Player",
+        "intro": [
+          "In this lab, you'll build a multimedia player.",
+          "You will practice working with the <code>audio</code> and <code>video</code> elements, the <code>controls</code> attribute, and the <code>aria-label</code> attribute."
+        ]
+      },
       "review-html-accessibility": {
         "title": "HTML Accessibility Review",
         "intro": [
diff --git a/client/i18n/locales/portuguese/intro.json b/client/i18n/locales/portuguese/intro.json
index 709eff45cc0..80669cd9012 100644
--- a/client/i18n/locales/portuguese/intro.json
+++ b/client/i18n/locales/portuguese/intro.json
@@ -2001,6 +2001,13 @@
           "You'll practice concepts like <code>alt</code> attributes and aria roles."
         ]
       },
+      "lab-multimedia-player": {
+        "title": "Build a Multimedia Player",
+        "intro": [
+          "In this lab, you'll build a multimedia player.",
+          "You will practice working with the <code>audio</code> and <code>video</code> elements, the <code>controls</code> attribute, and the <code>aria-label</code> attribute."
+        ]
+      },
       "review-html-accessibility": {
         "title": "HTML Accessibility Review",
         "intro": [
diff --git a/client/i18n/locales/swahili/intro.json b/client/i18n/locales/swahili/intro.json
index 42fd0631cd3..d88ed2dc968 100644
--- a/client/i18n/locales/swahili/intro.json
+++ b/client/i18n/locales/swahili/intro.json
@@ -2001,6 +2001,13 @@
           "You'll practice concepts like <code>alt</code> attributes and aria roles."
         ]
       },
+      "lab-multimedia-player": {
+        "title": "Build a Multimedia Player",
+        "intro": [
+          "In this lab, you'll build a multimedia player.",
+          "You will practice working with the <code>audio</code> and <code>video</code> elements, the <code>controls</code> attribute, and the <code>aria-label</code> attribute."
+        ]
+      },
       "review-html-accessibility": {
         "title": "HTML Accessibility Review",
         "intro": [
diff --git a/client/i18n/locales/ukrainian/intro.json b/client/i18n/locales/ukrainian/intro.json
index 7282f592345..9514a95b8c8 100644
--- a/client/i18n/locales/ukrainian/intro.json
+++ b/client/i18n/locales/ukrainian/intro.json
@@ -1987,6 +1987,13 @@
           "Ви будете практикуватись працювати з різними поняттями, серед яких атрибути <code>alt</code> та aria-ролі."
         ]
       },
+      "lab-multimedia-player": {
+        "title": "Build a Multimedia Player",
+        "intro": [
+          "In this lab, you'll build a multimedia player.",
+          "You will practice working with the <code>audio</code> and <code>video</code> elements, the <code>controls</code> attribute, and the <code>aria-label</code> attribute."
+        ]
+      },
       "review-html-accessibility": {
         "title": "Повторення доступності в HTML",
         "intro": [