To download the Android APK file for WPG-300:
1. Visit: https://www.viewsonicglobal.com/product-detail.php?item=WPG-300&pd=383
2. Click “vPresenter Pro(android)” and download the APK.
3. Install the APK.
To download the Android APK for PG603W:
1. Scan the QR code on the projection screen.
2. Download the APK.
3. Install the APK APP.