Echoes & Attunement

An Echo is not attunable by default, unless the base item used to create it or any of the material items used to tune it had the “Requires Attunement” property. In this case, the Echo likewise gains this property for all effects. In other words, if you used a clockwork amulet (a common item that does not need attunement) to create your Echo, if you later add something like a ring of mind shielding (an uncommon item that needs attunement) through tuning, the clockwork amulet properties no longer function unless you are attuned to the Echo.