What eavesdropping tool did Fred and George invent in Harry Potter and the Order of the Phoenix?
Extendable Ears
<s>[INST] <<SYS>> Answer as briefly as you can to the following question. You are required to give a one-shot answer: <</SYS>> What eavesdropping tool did Fred and George invent in Harry Potter and the Order of the Phoenix? [/INST] Extendable Ears </s>