Throughout the Enrichment Center, there are several hidden radios that play unique, eerie music. Finding and listening to these radios is often tied to specific achievements. They are usually tucked away in obscure corners, behind panels, or in areas that require clever portal placement to reach. When you get close to a radio, you'll hear its distinctive tune. To 'collect' it, you simply need to be in its vicinity for a few seconds. Some radios are in plain sight but require a specific portal trick to access, while others are truly hidden. Keep an eye out for small, glowing red lights or unusual architectural features that might hint at their presence. Listening to all of them unlocks the 'Transmission Received' achievement.
