At the moment, only PACK 5 is available for individual sale. This is because Pack 5 is the most recently updated pack. All of the packs are natural, fast conversations, and you will have access to the lessons forever.
All PACKS are the same format, but the speakers and topics are different in each pack. Each pack includes 10-12 different native English speakers.
All listening challenges are one-time payments with lifetime access to the course.