Does the Ryobi USB Lithium Clamp Fan come with a battery and charger?

It is sold as a kit, so it includes a Ryobi USB Lithium battery and a charging cable. Check the box contents for the exact pack size, since Ryobi sells several capacities.

How long does it run on one charge?

Runtime depends on the pack size and speed. Expect several hours on low and much less on high; larger USB Lithium packs last longer.

Can it run while plugged into USB power?

Yes. It runs from the battery, and the battery charges over USB, so you can keep it topped up from a power bank or laptop while it runs.

Will the clamp fit my desk?

It grips flat edges and rails up to a modest thickness. Very thick, rounded or sloped edges may not hold, so measure your desk lip before buying.

How does it compare with a plug-in desk fan?

A plug-in fan of the same size moves more air and never needs charging. The Ryobi wins on placement: it clamps anywhere and has no cord to route.

Is it quiet enough for an office?

Ryobi rates it at 30 dB, which is about a whisper. Most owners say it is quiet enough for shared workspaces, though the high setting is audible up close.