diff --git a/src/Client.js b/src/Client.js
index 776991c..e1e2255 100644
--- a/src/Client.js
+++ b/src/Client.js
@@ -66,7 +66,7 @@ class Client extends EventEmitter {
         if (this.options.session) {
             // Check if session restore was successfull 
             try {
-                await page.waitForSelector(KEEP_PHONE_CONNECTED_IMG_SELECTOR, { timeout: 45000 });
+                await page.waitForSelector(KEEP_PHONE_CONNECTED_IMG_SELECTOR, { timeout: this.options.authTimeoutMs });
             } catch (err) {
                 if (err.name === 'TimeoutError') {
                     /**
@@ -99,7 +99,7 @@ class Client extends EventEmitter {
                 // Wait for QR Code
 
                 const QR_CANVAS_SELECTOR = 'canvas';
-                await page.waitForSelector(QR_CANVAS_SELECTOR, { timeout: 45000 });
+                await page.waitForSelector(QR_CANVAS_SELECTOR, { timeout: this.options.qrTimeoutMs });
                 const qrImgData = await page.$eval(QR_CANVAS_SELECTOR, canvas => [].slice.call(canvas.getContext('2d').getImageData(0, 0, 264, 264).data));
                 const qr = jsQR(qrImgData, 264, 264).data;
                 /**
@@ -110,7 +110,7 @@ class Client extends EventEmitter {
                 this.emit(Events.QR_RECEIVED, qr);
             };
             getQrCode();
-            let retryInterval = setInterval(getQrCode, 20000); // check for qr code every 20 seconds
+            let retryInterval = setInterval(getQrCode, this.options.qrRefreshIntervalMs);
 
             // Wait for code scan
             await page.waitForSelector(KEEP_PHONE_CONNECTED_IMG_SELECTOR, { timeout: 0 });
diff --git a/src/util/Constants.js b/src/util/Constants.js
index a2a6886..d25903f 100644
--- a/src/util/Constants.js
+++ b/src/util/Constants.js
@@ -8,7 +8,10 @@ exports.DefaultOptions = {
     puppeteer: {
         headless: true
     },
-    session: false
+    session: false,
+    qrTimeoutMs: 45000,
+    qrRefreshIntervalMs: 20000,
+    authTimeoutMs: 45000,
 };
 
 /**