diff --git a/packages/webrtc/src/stats.ts b/packages/webrtc/src/stats.ts
index 7285c1b..508935a 100644
--- a/packages/webrtc/src/stats.ts
+++ b/packages/webrtc/src/stats.ts
@@ -13,10 +13,22 @@ export class RTCStatsReportImpl {
     this._map = map;
   }
 
+  get size(): number {
+    return this._map.size;
+  }
+
   entries(): IterableIterator<[string, RTCStats]> {
     return this._map.entries();
   }
 
+  keys(): IterableIterator<string> {
+    return this._map.keys();
+  }
+
+  values(): IterableIterator<RTCStats> {
+    return this._map.values();
+  }
+
   get(id: string): RTCStats | undefined {
     return this._map.get(id);
   }
diff --git a/packages/webrtc/src/types.ts b/packages/webrtc/src/types.ts
index 7eae91e..252bb0d 100644
--- a/packages/webrtc/src/types.ts
+++ b/packages/webrtc/src/types.ts
@@ -149,7 +149,10 @@ export interface RTCIceCandidatePairStats extends RTCStats {
 }
 
 export interface RTCStatsReport {
+  readonly size: number;
   entries(): IterableIterator<[string, RTCStats]>;
+  keys(): IterableIterator<string>;
+  values(): IterableIterator<RTCStats>;
   get(id: string): RTCStats | undefined;
   has(id: string): boolean;
   forEach(callbackfn: (value: RTCStats, key: string) => void): void;