# Premium Early Access

URL: https://folio.sonicar.tech/docs/settings-preferences/

> Enable premium early access to enjoy the latest premium features before everyone else.

## 🎵 Text-to-Speech Audio [#-text-to-speech-audio]

- Listen to articles with AI-generated audio.
- Adjust playback speeds (0.5x to 2.0x).
- Enjoy background playback with floating player.
- Access cached audio offline

![Text-to-Speech.png](/import/Text-to-Speech.png)

## 🔍 Full-Text Search [#-full-text-search]

- Search across all saved articles with server-powered technology.
- Find content within articles, not just titles and URLs.1
- Experience faster performance with cached search results.
- Use local search when offline.

![Full-Text-Search.png](/import/Full-Text-Search.png)

## ⚡ Text Highlighting & Annotations [#-text-highlighting--annotations]

- Highlight important passages in articles.
- Sync your highlights across all devices.
- Highlight text across multiple paragraphs.
- Store highlights permanently.

![Text-Highlighting-and-Annotations.png](/import/Text-Highlighting-and-Annotations.png)

## 🎨 Advanced Reader Customization [#-advanced-reader-customization]

- Select custom fonts and sizes.
- Control typography settings.
- Adjust reading spacing.
- Customize display settings.

![Advanced-Reader-Customization.png](/import/Advanced-Reader-Customization.png)