Reading through the text for the Elemental Attunement class feature, from the Monk class, it seems as though there's not a hard range given. To quote the effect:

Elemental Attunement. You can use your action to briefly control elemental forces nearby, causing one of the following effects of your choice:

• Create a harmless, instantaneous sensory effect...

• [and so forth]

The only official range I've been able to find stated is nearby, which is unusually squirrely for rules.

Is there an official statement on the range of this feature?