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Italian to English Tech/Engineering Cinema, Film, TV, Drama cost estimate for outfitting hall for hosting private event

This may be simple jargon, but here goes.
One of the items on the estimate is

N.5 Radiomicrofoni Shure SM58 (n.3 Gelati + n.2 Archetti) Area Staff per Preparazione /Trucco/Backstage

I get what "gelato" refers to, as the SM58 looks like an ice cream cone, but "archetto" doesn't jibe with this shape, which is the only one shown for this model on the Shure website. Any guesses?

Thanks.