diff --git a/public/Room.html b/public/Room.html
index fefa05b..6ab111f 100644
--- a/public/Room.html
+++ b/public/Room.html
@@ -116,6 +116,8 @@ access to use this app.
             <button id="chatButton" class="hidden"><i class="fas fa-comments"></i> Chat</button>
             <button id="fullScreenButton" class="hidden"><i class="fas fa-expand-alt"></i> Full screen</button>
             <button id="swapCameraButton" class="hidden"><i class="fas fa-sync-alt"></i> Swap Cam</button>
+            <button id="raiseHandButton" class="hidden"><i class="fas fa-hand-rock"></i> Raise hand</button>
+            <button id="lowerHandButton" class="hidden"><i class="fas fa-hand-paper"></i> Lower hand</button>
             <button id="startAudioButton" class="hidden"><i class="fas fa-microphone-slash"></i> Start audio</button>
             <button id="stopAudioButton" class="hidden"><i class="fas fa-microphone"></i> Stop audio</button>
             <button id="startVideoButton" class="hidden"><i class="fas fa-video-slash"></i> Start video</button>
diff --git a/public/css/Room.css b/public/css/Room.css
index 48ed050..325c501 100644
--- a/public/css/Room.css
+++ b/public/css/Room.css
@@ -532,16 +532,6 @@ button:hover {
     overflow: auto;
 }
 
-#roomParticipants button {
-    background: transparent;
-    color: red;
-    border-radius: 5px;
-}
-#roomParticipants button:hover {
-    color: white;
-    border-radius: 5px;
-}
-
 #roomParticipants table {
     border-collapse: collapse;
     width: 100%;
diff --git a/public/images/hide.png b/public/images/hide.png
new file mode 100644
index 0000000..cb221c2
Binary files /dev/null and b/public/images/hide.png differ
diff --git a/public/images/mute.png b/public/images/mute.png
new file mode 100644
index 0000000..29cb77a
Binary files /dev/null and b/public/images/mute.png differ
diff --git a/public/js/Room.js b/public/js/Room.js
index 26e7ef5..9af9558 100644
--- a/public/js/Room.js
+++ b/public/js/Room.js
@@ -4,6 +4,16 @@ if (location.href.substr(0, 5) !== 'https') location.href = 'https' + location.h
 
 const RoomURL = window.location.href;
 
+const _PEER = {
+    audioOn: '<i class="fas fa-microphone"></i>',
+    audioOff: '<i style="color: red;" class="fas fa-microphone-slash"></i>',
+    videoOn: '<i class="fas fa-video"></i>',
+    videoOff: '<i style="color: red;" class="fas fa-video-slash"></i>',
+    raiseHand: '<i style="color: rgb(0, 180, 50);" class="fas fa-hand-paper pulsate"></i>',
+    lowerHand: '',
+    ejectPeer: '<i class="fas fa-times"></i>',
+};
+
 const swalBackground = 'linear-gradient(to left, #1f1e1e, #000000)';
 const swalImageUrl = '../images/pricing-illustration.svg';
 
@@ -174,6 +184,7 @@ function getPeerInfo() {
         peer_name: peer_name,
         peer_audio: isAudioOn,
         peer_video: isVideoOn,
+        peer_hand: false,
     };
 }
 
@@ -389,6 +400,7 @@ function roomIsReady() {
         show(fullScreenButton);
     }
     show(settingsButton);
+    show(raiseHandButton);
     if (isAudioAllowed) show(startAudioButton);
     if (isVideoAllowed) show(startVideoButton);
     show(participantsButton);
@@ -534,6 +546,12 @@ function handleButtons() {
     swapCameraButton.onclick = () => {
         rc.closeThenProduce(RoomClient.mediaType.video, null, true);
     };
+    raiseHandButton.onclick = () => {
+        rc.updatePeerInfo(peer_name, rc.peer_id, 'hand', true);
+    };
+    lowerHandButton.onclick = () => {
+        rc.updatePeerInfo(peer_name, rc.peer_id, 'hand', false);
+    };
     startAudioButton.onclick = () => {
         rc.produce(RoomClient.mediaType.audio, microphoneSelect.value);
         // rc.resumeProducer(RoomClient.mediaType.audio);
@@ -633,6 +651,17 @@ function handleRoomClientEvents() {
         show(startRecButton);
         stopRecordingTimer();
     });
+    rc.on(RoomClient.EVENTS.raiseHand, () => {
+        console.log('Room Client raise hand');
+        hide(raiseHandButton);
+        show(lowerHandButton);
+        setColor(lowerHandButton, 'green');
+    });
+    rc.on(RoomClient.EVENTS.lowerHand, () => {
+        console.log('Room Client lower hand');
+        hide(lowerHandButton);
+        show(raiseHandButton);
+    });
     rc.on(RoomClient.EVENTS.startAudio, () => {
         console.log('Room Client start audio');
         hide(startAudioButton);
@@ -720,13 +749,13 @@ function closeNav() {
 // SHOW LOG
 // ####################################################
 
-function userLog(icon, message, position) {
+function userLog(icon, message, position, timer = 3000) {
     const Toast = Swal.mixin({
         background: swalBackground,
         toast: true,
         position: position,
         showConfirmButton: false,
-        timer: 3000,
+        timer: timer,
     });
     Toast.fire({
         icon: icon,
@@ -755,26 +784,7 @@ async function sound(name) {
 async function getRoomParticipants() {
     let room_info = await rc.getRoomInfo();
     let peers = new Map(JSON.parse(room_info.peers));
-    let table = `<div id="roomParticipants"><table>
-    <tr>
-        <th></th>
-        <th></th>
-    </tr>`;
-    for (let peer of Array.from(peers.keys())) {
-        let peer_info = peers.get(peer).peer_info;
-        let peer_name = peer_info.peer_name;
-        let peer_id = peer_info.peer_id;
-        rc.peer_id === peer_id
-            ? (table += `<tr>
-                            <td>👤 ${peer_name} (me)</td>
-                            <td></td>
-                        </tr>`)
-            : (table += `<tr id='${peer_id}'>
-                            <td>👤 ${peer_name}</td>
-                            <td><button id='${peer_id}' onclick="rc.peerAction('me',this.id,'eject')">eject</button></td>
-                        </tr>`);
-    }
-    table += `</table></div>`;
+    let table = await getParticipantsTable(peers);
 
     sound('open');
 
@@ -783,15 +793,66 @@ async function getRoomParticipants() {
         position: 'center',
         title: `Participants ${peers.size}`,
         html: table,
+        showCancelButton: true,
+        confirmButtonText: `Refresh`,
+        cancelButtonText: `Close`,
         showClass: {
             popup: 'animate__animated animate__fadeInDown',
         },
         hideClass: {
             popup: 'animate__animated animate__fadeOutUp',
         },
+    }).then((result) => {
+        if (result.isConfirmed) {
+            getRoomParticipants();
+        }
     });
 }
 
+async function getParticipantsTable(peers) {
+    let table = `<div id="roomParticipants">
+    <table>
+    <tr>
+        <th></th>
+        <th></th>
+        <th></th>
+        <th></th>
+        <th></th>
+    </tr>`;
+    for (let peer of Array.from(peers.keys())) {
+        let peer_info = peers.get(peer).peer_info;
+        let peer_name = '👤 ' + peer_info.peer_name;
+        let peer_audio = peer_info.peer_audio ? _PEER.audioOn : _PEER.audioOff;
+        let peer_video = peer_info.peer_video ? _PEER.videoOn : _PEER.videoOff;
+        let peer_hand = peer_info.peer_hand ? _PEER.raiseHand : _PEER.lowerHand;
+        let peer_eject = _PEER.ejectPeer;
+        let peer_id = peer_info.peer_id;
+        if (rc.peer_id === peer_id) {
+            table += `
+            <tr>
+                <td>${peer_name} (me)</td>
+                <td><button>${peer_audio}</button></td>
+                <td><button>${peer_video}</button></td>
+                <td><button>${peer_hand}</button></td>
+                <td></td>
+            </tr>
+            `;
+        } else {
+            table += `
+            <tr id='${peer_id}'>
+                <td>${peer_name}</td>
+                <td><button id='${peer_id}__audio' onclick="rc.peerAction('me',this.id,'mute')">${peer_audio}</button></td>
+                <td><button id='${peer_id}__video' onclick="rc.peerAction('me',this.id,'hide')">${peer_video}</button></td>
+                <td><button>${peer_hand}</button></td>
+                <td><button id='${peer_id}__eject' onclick="rc.peerAction('me',this.id,'eject')">${peer_eject}</button></td>
+            </tr>
+            `;
+        }
+    }
+    table += `</table></div>`;
+    return table;
+}
+
 // ####################################################
 // ABOUT
 // ####################################################
diff --git a/public/js/RoomClient.js b/public/js/RoomClient.js
index fa148bc..5f1200f 100644
--- a/public/js/RoomClient.js
+++ b/public/js/RoomClient.js
@@ -12,6 +12,8 @@ const image = {
     poster: '../images/loader.gif',
     delete: '../images/delete.png',
     locked: '../images/locked.png',
+    mute: '../images/mute.png',
+    hide: '../images/hide.png',
 };
 
 const mediaType = {
@@ -28,6 +30,8 @@ const _EVENTS = {
     pauseRec: 'pauseRec',
     resumeRec: 'resumeRec',
     stopRec: 'stopRec',
+    raiseHand: 'raiseHand',
+    lowerHand: 'lowerHand',
     startVideo: 'startVideo',
     pauseVideo: 'pauseVideo',
     resumeVideo: 'resumeVideo',
@@ -381,6 +385,14 @@ class RoomClient {
             }.bind(this),
         );
 
+        this.socket.on(
+            'updatePeerInfo',
+            function (data) {
+                console.log('Peer info update:', data);
+                this.updatePeerInfo(data.peer_name, data.peer_id, data.type, data.status, false);
+            }.bind(this),
+        );
+
         this.socket.on(
             'disconnect',
             function () {
@@ -606,7 +618,7 @@ class RoomClient {
         let elem, d, p;
         d = document.createElement('div');
         d.className = 'Camera';
-        d.id = id + '_d';
+        d.id = id + '__d';
         elem = document.createElement('video');
         elem.setAttribute('id', id);
         elem.setAttribute('playsinline', true);
@@ -614,7 +626,7 @@ class RoomClient {
         elem.poster = image.poster;
         this.isMobileDevice || type === mediaType.screen ? (elem.className = '') : (elem.className = 'mirror');
         p = document.createElement('p');
-        p.id = id + '_name';
+        p.id = id + '__name';
         p.innerHTML = '👤 ' + this.peer_name + ' (me)';
         d.appendChild(elem);
         d.appendChild(p);
@@ -684,11 +696,16 @@ class RoomClient {
         }
 
         let producer_id = this.producerLabel.get(type);
-        console.log('Close producer', producer_id);
 
-        this.socket.emit('producerClosed', {
-            producer_id,
-        });
+        let data = {
+            peer_name: this.peer_name,
+            producer_id: producer_id,
+            type: type,
+            status: false,
+        };
+        console.log('Close producer', data);
+
+        this.socket.emit('producerClosed', data);
 
         this.producers.get(producer_id).close();
         this.producers.delete(producer_id);
@@ -696,7 +713,7 @@ class RoomClient {
 
         if (type !== mediaType.audio) {
             let elem = this.getId(producer_id);
-            let d = this.getId(producer_id + '_d');
+            let d = this.getId(producer_id + '__d');
             elem.srcObject.getTracks().forEach(function (track) {
                 track.stop();
             });
@@ -786,7 +803,7 @@ class RoomClient {
             case mediaType.video:
                 d = document.createElement('div');
                 d.className = 'Camera';
-                d.id = id + '_d';
+                d.id = id + '__d';
                 elem = document.createElement('video');
                 elem.setAttribute('id', id);
                 elem.setAttribute('playsinline', true);
@@ -794,7 +811,7 @@ class RoomClient {
                 elem.className = '';
                 elem.poster = image.poster;
                 p = document.createElement('p');
-                p.id = id + '_name';
+                p.id = id + '__name';
                 p.innerHTML = '👤 ' + peer_name;
                 d.appendChild(elem);
                 d.appendChild(p);
@@ -819,7 +836,7 @@ class RoomClient {
 
     removeConsumer(consumer_id) {
         let elem = this.getId(consumer_id);
-        let d = this.getId(consumer_id + '_d');
+        let d = this.getId(consumer_id + '__d');
 
         elem.srcObject.getTracks().forEach(function (track) {
             track.stop();
@@ -980,13 +997,13 @@ class RoomClient {
         }
     }
 
-    userLog(icon, message, position) {
+    userLog(icon, message, position, timer = 5000) {
         const Toast = Swal.mixin({
             background: swalBackground,
             toast: true,
             position: position,
             showConfirmButton: false,
-            timer: 5000,
+            timer: timer,
         });
         Toast.fire({
             icon: icon,
@@ -1436,45 +1453,136 @@ class RoomClient {
     // PEER ACTION
     // ####################################################
 
-    peerAction(from_peer_name, peer_id, action, emit = true) {
-        switch (action) {
-            case 'eject':
-                let peer = this.getId(peer_id);
-                if (peer) peer.parentNode.removeChild(peer);
-                if (peer_id === this.peer_id) {
-                    this.sound(action);
-                    let timerInterval;
-                    Swal.fire({
-                        allowOutsideClick: false,
-                        background: swalBackground,
-                        title: from_peer_name,
-                        html: 'Will eject you from the room after <b style="color: red;"></b> milliseconds.',
-                        timer: 5000,
-                        timerProgressBar: true,
-                        didOpen: () => {
-                            Swal.showLoading();
-                            const b = Swal.getHtmlContainer().querySelector('b');
-                            timerInterval = setInterval(() => {
-                                b.textContent = Swal.getTimerLeft();
-                            }, 100);
-                        },
-                        willClose: () => {
-                            clearInterval(timerInterval);
-                        },
-                    }).then(() => {
-                        this.exit();
-                    });
-                }
-                break;
-            // ...
-        }
+    peerAction(from_peer_name, id, action, emit = true, broadcast = false) {
+        let peer_id = id;
+
         if (emit) {
+            const words = peer_id.split('__');
+            peer_id = words[0];
+
+            switch (action) {
+                case 'eject':
+                    let peer = this.getId(peer_id);
+                    if (peer) peer.parentNode.removeChild(peer);
+                    break;
+                case 'mute':
+                    let peerAudioButton = this.getId(peer_id + '__audio');
+                    if (peerAudioButton) peerAudioButton.innerHTML = _PEER.audioOff;
+                    break;
+                case 'hide':
+                    let peerVideoButton = this.getId(peer_id + '__video');
+                    if (peerVideoButton) peerVideoButton.innerHTML = _PEER.videoOff;
+            }
+
             let data = {
                 from_peer_name: this.peer_name,
                 peer_id: peer_id,
                 action: action,
+                broadcast: broadcast,
             };
             this.socket.emit('peerAction', data);
+        } else {
+            switch (action) {
+                case 'eject':
+                    if (peer_id === this.peer_id) {
+                        this.sound(action);
+                        let timerInterval;
+                        Swal.fire({
+                            allowOutsideClick: false,
+                            background: swalBackground,
+                            title: from_peer_name,
+                            html: 'Will eject you from the room after <b style="color: red;"></b> milliseconds.',
+                            timer: 5000,
+                            timerProgressBar: true,
+                            didOpen: () => {
+                                Swal.showLoading();
+                                const b = Swal.getHtmlContainer().querySelector('b');
+                                timerInterval = setInterval(() => {
+                                    b.textContent = Swal.getTimerLeft();
+                                }, 100);
+                            },
+                            willClose: () => {
+                                clearInterval(timerInterval);
+                            },
+                        }).then(() => {
+                            this.exit();
+                        });
+                    }
+                    break;
+                case 'mute':
+                    if (peer_id === this.peer_id) {
+                        this.closeProducer(mediaType.audio);
+                        this.userLog(
+                            'warning',
+                            from_peer_name + '  ' + _PEER.audioOff + ' has closed yours audio',
+                            'top-end',
+                            10000,
+                        );
+                    }
+                    break;
+                case 'hide':
+                    if (peer_id === this.peer_id) {
+                        this.closeProducer(mediaType.video);
+                        this.userLog(
+                            'warning',
+                            from_peer_name + '  ' + _PEER.videoOff + ' has closed yours video',
+                            'top-end',
+                            10000,
+                        );
+                    }
+                    break;
+                // ...
+            }
+        }
+    }
+
+    // ####################################################
+    // UPDATE PEER INFO
+    // ####################################################
+
+    updatePeerInfo(peer_name, peer_id, type, status, emit = true) {
+        if (emit) {
+            switch (type) {
+                case 'audio':
+                    this.peer_info.peer_audio = status;
+                    break;
+                case 'video':
+                    this.peer_info.peer_video = status;
+                    break;
+                case 'hand':
+                    this.peer_info.peer_hand = status;
+                    if (status) {
+                        this.event(_EVENTS.raiseHand);
+                        this.sound('raiseHand');
+                    } else {
+                        this.event(_EVENTS.lowerHand);
+                    }
+                    break;
+            }
+            let data = {
+                peer_name: peer_name,
+                peer_id: peer_id,
+                type: type,
+                status: status,
+            };
+            this.socket.emit('updatePeerInfo', data);
+        } else {
+            switch (type) {
+                case 'audio':
+                    break;
+                case 'video':
+                    break;
+                case 'hand':
+                    if (status)
+                        this.userLog(
+                            'warning',
+                            peer_name + '  ' + _PEER.raiseHand + ' has raised the hand',
+                            'top-end',
+                            10000,
+                        );
+                    this.sound('raiseHand');
+                    break;
+            }
         }
     }
 
@@ -1488,6 +1596,7 @@ class RoomClient {
                         'peer_name',
                         'peer_audio',
                         'peer_video',
+                        'peer_hand',
                         'is_mobile_device',
                         'os_name',
                         'os_version',
diff --git a/public/sounds/raiseHand.wav b/public/sounds/raiseHand.wav
new file mode 100644
index 0000000..c2b1352
Binary files /dev/null and b/public/sounds/raiseHand.wav differ
diff --git a/src/Peer.js b/src/Peer.js
index 5e24aeb..8aeea12 100644
--- a/src/Peer.js
+++ b/src/Peer.js
@@ -10,11 +10,32 @@ module.exports = class Peer {
         this.peer_name = data.peer_info.peer_name;
         this.peer_audio = data.peer_info.peer_audio;
         this.peer_video = data.peer_info.peer_video;
+        this.peer_hand = data.peer_info.peer_hand;
         this.transports = new Map();
         this.consumers = new Map();
         this.producers = new Map();
     }
 
+    // ####################################################
+    // UPDATE PEER INFO
+    // ####################################################
+
+    updatePeerInfo(data) {
+        switch (data.type) {
+            case 'audio':
+            case 'audioType':
+                this.peer_info.peer_audio = data.status;
+                break;
+            case 'video':
+            case 'videoType':
+                this.peer_info.peer_video = data.status;
+                break;
+            case 'hand':
+                this.peer_info.peer_hand = data.status;
+                break;
+        }
+    }
+
     // ####################################################
     // TRANSPORT
     // ####################################################
diff --git a/src/Server.js b/src/Server.js
index 3c6b588..1141d12 100644
--- a/src/Server.js
+++ b/src/Server.js
@@ -219,7 +219,18 @@ io.on('connection', (socket) => {
 
     socket.on('peerAction', (data) => {
         log.debug('Peer action:', data);
-        roomList.get(socket.room_id).sendTo(data.peer_id, 'peerAction', data);
+        if (data.broadcast) {
+            roomList.get(socket.room_id).broadCast(data.peer_id, 'peerAction', data);
+        } else {
+            roomList.get(socket.room_id).sendTo(data.peer_id, 'peerAction', data);
+        }
+    });
+
+    socket.on('updatePeerInfo', (data) => {
+        log.debug('Peer info update:', data);
+        // peer_info hand raise Or lower
+        roomList.get(socket.room_id).getPeers().get(socket.id).updatePeerInfo(data);
+        roomList.get(socket.room_id).broadCast(socket.id, 'updatePeerInfo', data);
     });
 
     socket.on('join', (data, cb) => {
@@ -290,16 +301,26 @@ io.on('connection', (socket) => {
             return callback({ error: 'Room not found' });
         }
 
+        let peer_name = getPeerName(false);
+
         let producer_id = await roomList
             .get(socket.room_id)
             .produce(socket.id, producerTransportId, rtpParameters, kind);
 
         log.debug('Produce', {
             kind: kind,
-            peer_name: getPeerName(false),
+            peer_name: peer_name,
             producer_id: producer_id,
         });
 
+        // peer_info audio Or video ON
+        let data = {
+            peer_name: peer_name,
+            type: kind,
+            status: true,
+        };
+        roomList.get(socket.room_id).getPeers().get(socket.id).updatePeerInfo(data);
+
         callback({
             producer_id,
         });
@@ -323,10 +344,12 @@ io.on('connection', (socket) => {
         callback(params);
     });
 
-    socket.on('producerClosed', ({ producer_id }) => {
-        log.debug('Producer close', getPeerName());
+    socket.on('producerClosed', (data) => {
+        log.debug('Producer close', data);
 
-        roomList.get(socket.room_id).closeProducer(socket.id, producer_id);
+        // peer_info audio Or video OFF
+        roomList.get(socket.room_id).getPeers().get(socket.id).updatePeerInfo(data);
+        roomList.get(socket.room_id).closeProducer(socket.id, data.producer_id);
     });
 
     socket.on('resume', async (_, callback) => {