diff --git a/src/encoders/index.ts b/src/encoders/index.ts
index 15fcaa5..1fd0c55 100644
--- a/src/encoders/index.ts
+++ b/src/encoders/index.ts
@@ -1,5 +1,7 @@
-import RTTrPHeader from './rttrp';
+import RTTrPM from './motion/rttrpm';
+import RTTrPHeader from './rttrp-header';
 
 export const Encoders = {
   RTTrPHeader,
+  RTTrPM,
 };
diff --git a/src/encoders/motion/rttrpm.ts b/src/encoders/motion/rttrpm.ts
new file mode 100644
index 0000000..ce9e5f3
--- /dev/null
+++ b/src/encoders/motion/rttrpm.ts
@@ -0,0 +1,30 @@
+import RTTrPHeader from '../rttrp-header';
+
+export default (
+  packetId: number,
+  context: number,
+  trackables: Uint8Array[],
+  isLittleEndian: boolean = false
+): Uint8Array => {
+  let totalPacketSize = 18; //header size
+
+  trackables.forEach((trackable) => {
+    totalPacketSize += trackable.length;
+  });
+  console.log(totalPacketSize);
+  const bytes = new Uint8Array(totalPacketSize);
+
+  let dataOffset = 0;
+
+  const headerBytes = RTTrPHeader(0x4334, 0x02, packetId, 0x00, context, trackables, isLittleEndian);
+  console.log(headerBytes.length);
+
+  bytes.set(headerBytes, dataOffset);
+  dataOffset += headerBytes.length;
+  trackables.forEach((trackable) => {
+    console.log('dataOffset', dataOffset);
+    bytes.set(trackable, dataOffset);
+    dataOffset += trackable.length;
+  });
+  return bytes;
+};