diff --git a/src/screens/professor/Classroom/AnnouncementsTab/index.js b/src/screens/professor/Classroom/AnnouncementsTab/index.js
index 28d8311..241d405 100644
--- a/src/screens/professor/Classroom/AnnouncementsTab/index.js
+++ b/src/screens/professor/Classroom/AnnouncementsTab/index.js
@@ -72,15 +72,18 @@ function AnnouncementsTab({
                         sx={{ display: 'flex', justifyContent: 'row' }}
                       >
                         <img src={jitsiLogo} alt="Jitsi Meet" />
-                        <h3 style={{ fontWeight: 500 }}>Jitsi</h3>
+                        <h3 style={{ fontWeight: 500 }}>
+                          Sala de aula virtual
+                        </h3>
                       </Container>
 
                       <Button
+                        sx={{ marginTop: '15px' }}
                         variant="contained"
-                        href="https://google.com"
+                        href={classroom.virtualRoom}
                         target="__blank"
                       >
-                        Entrar
+                        Iniciar aula
                       </Button>
                     </Stack>
                   </Card>
@@ -219,15 +222,14 @@ function AnnouncementsTab({
                       sx={{ display: 'flex', justifyContent: 'row' }}
                     >
                       <img src={jitsiLogo} alt="Jitsi Meet" />
-                      <h3 style={{ fontWeight: 500 }}>Jitsi</h3>
+                      <h3 style={{ fontWeight: 500 }}>Sala de aula virtual</h3>
                     </Container>
-
                     <Button
                       variant="contained"
-                      href="https://google.com"
+                      href={classroom.virtualRoom}
                       target="__blank"
                     >
-                      Entrar
+                      Iniciar aula
                     </Button>
                   </Stack>
                 </Card>
diff --git a/src/screens/professor/Classroom/Header/styles.js b/src/screens/professor/Classroom/Header/styles.js
index babe6b3..3784cbd 100644
--- a/src/screens/professor/Classroom/Header/styles.js
+++ b/src/screens/professor/Classroom/Header/styles.js
@@ -10,12 +10,10 @@ const desktopPaper = classColor => ({
 });
 
 const desktopTabs = {
-  display: 'flex',
   marginLeft: '-20px',
   marginRight: '-20px',
-  marginBottom: '-20px',
+  marginBottom: '-30px',
   marginTop: '30px',
-  padding: '10px',
 };
 
 const desktopAvatar = {
diff --git a/src/screens/student/Classroom/AnnouncementsTab/index.js b/src/screens/student/Classroom/AnnouncementsTab/index.js
index 90d169d..cded9cc 100644
--- a/src/screens/student/Classroom/AnnouncementsTab/index.js
+++ b/src/screens/student/Classroom/AnnouncementsTab/index.js
@@ -64,7 +64,9 @@ function AnnouncementsTab({ layoutType, announcementsTabData, classroom }) {
                         sx={{ display: 'flex', justifyContent: 'row' }}
                       >
                         <img src={jitsiLogo} alt="Jitsi Meet" />
-                        <h3 style={{ fontWeight: 500 }}>Jitsi</h3>
+                        <h3 style={{ fontWeight: 500 }}>
+                          Sala de aula virtual
+                        </h3>
                       </Container>
 
                       <Button
@@ -205,7 +207,7 @@ function AnnouncementsTab({ layoutType, announcementsTabData, classroom }) {
                       sx={{ display: 'flex', justifyContent: 'row' }}
                     >
                       <img src={jitsiLogo} alt="Jitsi Meet" />
-                      <h3 style={{ fontWeight: 500 }}>Jitsi</h3>
+                      <h3 style={{ fontWeight: 500 }}>Sala de aula virtual</h3>
                     </Container>
 
                     <Button
diff --git a/src/utils/mocks/responses.js b/src/utils/mocks/responses.js
index d864fda..44dd24c 100644
--- a/src/utils/mocks/responses.js
+++ b/src/utils/mocks/responses.js
@@ -4,6 +4,7 @@ const allClassrooms = [
     name: 'Introdução à Ciência de Dados',
     abbreviation: 'ICD',
     color: '#006FF2',
+    virtualRoom: 'https://meet.jit.si/ifmg-icd-321',
     teachers: [
       {
         id: '2342',
@@ -22,6 +23,7 @@ const allClassrooms = [
     name: 'Gestão de Projetos',
     abbreviation: 'GP',
     color: '#7900F2',
+    virtualRoom: 'https://meet.jit.si/ifmg-gp-123',
     teachers: [
       {
         id: '1234',
@@ -45,6 +47,7 @@ const allClassrooms = [
     name: 'Banco de Dados II',
     abbreviation: 'BDII',
     color: '#FF7A00',
+    virtualRoom: 'https://meet.jit.si/ifmg-bdii-666',
     teachers: [
       {
         id: '6781',
@@ -63,6 +66,7 @@ const allClassrooms = [
     name: 'Contabilidade Básica',
     abbreviation: 'CB',
     color: '#BB0000',
+    virtualRoom: 'https://meet.jit.si/ifmg-cb-765',
     teachers: [
       {
         id: '4321',
@@ -80,6 +84,7 @@ const allClassrooms = [
     name: 'Linguagens de Programação',
     abbreviation: 'LP',
     color: '#039200',
+    virtualRoom: 'https://meet.jit.si/ifmg-lp-333',
     teachers: [
       {
         id: '9999',
@@ -101,6 +106,7 @@ const professorClassrooms = [
     name: 'Introdução à Ciência de Dados',
     abbreviation: 'ICD',
     color: '#006FF2',
+    virtualRoom: 'https://meet.jit.si/ifmg-icd-321',
     course: 'BSI 2020',
     appointmentSlots: [
       { weekDay: 'Quarta-feira', start: '10:00', end: '11:40' },
@@ -112,6 +118,7 @@ const professorClassrooms = [
     name: 'Teoria dos Grafos',
     abbreviation: 'TDG',
     color: '#d30000',
+    virtualRoom: 'https://meet.jit.si/ifmg-tdg-123',
     course: 'BSI 2018',
     appointmentSlots: [
       { weekDay: 'Quarta-feira', start: '11:00', end: '12:00' },
@@ -123,6 +130,7 @@ const professorClassrooms = [
     name: 'Matemática Discreta',
     abbreviation: 'MD',
     color: '#149b00',
+    virtualRoom: 'https://meet.jit.si/ifmg-md-666',
     course: 'BSI 2020',
     appointmentSlots: [
       { weekDay: 'Quarta-feira', start: '9:00', end: '10:00' },