Kindle audiobooks are primarily found through Amazon's Audible service, with many available free via Kindle Unlimited (KU) or Prime Reading, allowing seamless switching between reading and listening on compatible devices or the Kindle app. You can find them by searching Amazon or the Kindle app for "audiobooks," often marked as "Read & Listen for Free," and listen using Bluetooth headphones/speakers with Kindle's built-in text-to-speech (VoiceView) for any ebook.