For those with poor eyesight or are strong auditory learners or need to have their screens or documents read to them. Single User: This version includes 2 British Realspeak voices, Daniel and Emily. Lightning with Speech also includes a special portable USB memory stick version, allowing you to use Lightning with Speech on computers without having to install anything or be an administrator. Just walk up and insert the USB stick to start the program. Lightning with Speech runs directly from the USB stick. Includes a high-quality RealSpeak voice. Institutions or large groups can contact us for a quotation. Delivery Time: Maximum 7-14 days (can be shorter at times). Price all inclusive.