It depends on what you mean. Could you rephrase the question?
Probably some type of piccolo pocket trumpet.
A piccolo trumpet has a higher pitch than that of a traditional trumpet.
Trumpet
A piccolo trumpet is a trumpet with half the normal length of tubing. This allows it to produce pitches much higher than a normal trumpet.
A standard trumpet(not a piccolo)usually has three valves. However, the higher-pitched piccolo trumpet has four.
There are other types of trumpets thata are smaller than a bflat trumpet. Such as, the piccolo trumpet, the pocket trumpet, and other smaller things like these.
You must be referring to the Piccolo Trumpet.
It is half the size of a regular trumpet.
The key of a piccolo trumpet is usually in B-flat or A. It differs from a standard trumpet in that it is smaller in size and has a higher pitch, producing a brighter and more piercing sound.
Trumpet and piccolo trumpet (smaller, but less common) are the smallest brass instruments.
Trumpet or piccolo trumpet (less common).
Not really. The piccolo trumpet was invented in 1890, long after the Baroque and Classical periods in which the "standards" for instruments in an orchestra would have been set. Even modern orchestras generally do not use a piccolo trumpet unless a particular piece calls for it.