Introduction[]
| “ | Extendable Ears are a product invented by Fred and George Weasley. The flesh-coloured Ears are useful for eavesdropping on private conversations. | ” |
From the Story[]
Harry Potter and the Order of the Phoenix[]
Discovered in chapter 4, Number Twelve, Grimmauld Place[]
| “ | Although Extendable Ears can hear through doors, they are rendered useless against an Imperturbable Charm. | ” |