Most new devices are already Miracast certified. If you have a device that uses the Windows 8.1/10 or newer operating system and if your phone is an Android 4.2 or newer than this, then it is most likely that you already have Miracast in your device. You can try to connect your phone to your TV turning on the screen mirroring on your android and selecting your TV on the list. If you want to be certain, you can look for the Miracast certified logo on your product description. Alternately you can google your product to find if it is certified.