diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..e060831
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,123 @@
+import { ChildProcess, SpawnOptions } from 'node:child_process';
+import { Readable } from 'node:stream';
+
+export interface RecordingOptions {
+    /**
+     * Sample rate in Hz
+     * @default 16000
+     */
+    sampleRate?: number;
+    
+    /**
+     * Number of channels to record
+     * @default 1
+     */
+    channels?: number;
+    
+    /**
+     * Whether to compress the audio
+     * @default false
+     */
+    compress?: boolean;
+    
+    /**
+     * Audio threshold
+     * @default 0.5
+     */
+    threshold?: number;
+    
+    /**
+     * Threshold for starting recording
+     * @default null
+     */
+    thresholdStart?: number | null;
+    
+    /**
+     * Threshold for ending recording
+     * @default null
+     */
+    thresholdEnd?: number | null;
+    
+    /**
+     * Silence duration
+     * @default "1.0"
+     */
+    silence?: string;
+    
+    /**
+     * Recording program to use
+     * @default "sox"
+     */
+    recorder?: string;
+    
+    /**
+     * Whether to end recording on silence
+     * @default false
+     */
+    endOnSilence?: boolean;
+    
+    /**
+     * Audio file type
+     * @default "wav"
+     */
+    audioType?: string;
+}
+
+export interface RecorderConfig {
+    cmd: string;
+    args: string[];
+    spawnOptions?: SpawnOptions;
+}
+
+export interface Recorder {
+    (options: RecordingOptions): RecorderConfig;
+}
+
+export class Recording {
+    constructor(options?: RecordingOptions);
+    
+    /**
+     * The child process running the recorder
+     */
+    process: ChildProcess;
+    
+    /**
+     * Recording options
+     */
+    options: Required<RecordingOptions>;
+    
+    /**
+     * Start recording
+     */
+    start(): Recording;
+    
+    /**
+     * Stop recording
+     */
+    stop(): void;
+    
+    /**
+     * Pause recording
+     */
+    pause(): void;
+    
+    /**
+     * Resume recording
+     */
+    resume(): void;
+    
+    /**
+     * Check if recording is paused
+     */
+    isPaused(): boolean;
+    
+    /**
+     * Get the recording stream
+     */
+    stream(): Readable;
+}
+
+/**
+ * Create a new recording instance
+ */
+export function record(options?: RecordingOptions): Recording;
diff --git a/package.json b/package.json
index f10d8ce..7f88e70 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "description": "Record a microphone input stream",
   "license": "ISC",
   "main": "index.js",
+  "types": "index.d.ts",
   "dependencies": {
     "debug": "^2.6.8"
   },