The Bauhaus Walstein Slide Trumpet ( sometimes known as a mini trombone) plays in the same register as the Bb trumpet (one octave higher than the Bb trombone) and takes a regular trumpet mouthpiece. It is very light, and while not the most serious of instrument choices it can be a good starter instrument especially for smaller people - light, easy to manage, and fun to play, used occasionally for Jazz work, sometimes orchestral, an inexpensive way to start and highly portable. Bore: 11.5mm Bell: 120mm Body: lacquered brass Slide: nickel plated brass inner slide Weight: 20 ounces Trumpet register Uses trumpet mouthpiece Key: Bb
The Jupiter JST-314L is termed a "slide trumpet" as it plays in the Bb trumpet register and uses a trumpet mouthpiece, however, it also falls into the trombone category as it is played with a slide - weighing just 20 ounces the term "mini trombone" is apt. It has the following attributes: Bore - 11.5mm, Bell - 120mm, Slide - nickel plated brass inner slide, wooden frame case.