Keen. A am wave at 40 Hz, originating from Industrial Zone. Recorded in a chamber environment, era: 2000s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #0499 — Keen
ID#499
Rarity
HI:18%
Frequency
40 Hz
X-HI:5%
Wave Type
AM
EX:5%
Resonance
Crystalline
X-HI:5%
Era
2000s
X-HI:8%
Origin
Industrial Zone