All Ears is an achievement in Halo 3: ODST and Halo: The Master Chief Collection. It is obtained when you find 15 Audio Logs in Campaign Mode, alone or with another ODST. It is worth 30 Gamerpoints.
It is represented by a blue square with audio lines going across it, with 15 in the lower-right corner, and a picture of the Superintendent with his eyes wide open.
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