Minor Illusion

Components: Somatic and Material (bit of fleece)
Range: 30ft
You create a sound or an image of an object
within range that lasts for 1 minute. The sound
can be any you choose, ranging in volume from a whisper to a scream and can be constant or at different intervals. An object cannot be larger
than a 5ft cube and can't create other sensory
effects.
More specific details on the illusion on page 260.