Echo Engrams are a type of Engram in Destiny 2 that can be opened to obtain various rewards, including weapons, armor, and other items. To open an Echo Engram, players must first collect it by defeating enemies or completing activities. Once collected, players can open the Engram by interacting with the Postmaster in the Tower or any other social space.
Echo Engrams are an important source of loot in Destiny 2, as they can contain powerful weapons and armor that can help players progress through the game’s content. Additionally, Echo Engrams can also contain cosmetic items, such as shaders and emotes.