Drown out the hum of machinery and whine of bomber engines with the soothing sounds of new martial music brought to you by Paradox Interactive and its composing partners. This DLC pack adds unique radio stations for each of the three major factions in Hearts of Iron IV (Allies, Axis and Comintern).The Hearts of Iron Radio Pack gives access to: Faction Radio Channels A total of 35 new songs spread across three faction specific radio channels, each with their own unique look and design.