Listen to and download books in LKF format for offline playback. Features include fast forward, auto-stop, and support for wired and wireless headsets. Registration with a special library for the blind is required to access the collection.
Record and compare your vocal performance of church hymns with the original. Practice holding your part in the church choir by listening to a similar pitch, singing along, and recording your voice.
Study for maritime exams with Delta Test Convention Plus. Access questions and answers updated for . Practice tests by role including captain, deck officer, engineer, and crew. Review explanations and track progress.
