Jupiter JTR710Q 700 Series Pocket Trumpet - Key of BbThe JTR710 pocket trumpet is with a standard size bell and redesigned 3rd loop. You'll be able to produce just as powerful a sound while only having to carry around a trumpet a fraction of the size. Features Stainless Steel Pistons have remarkably smooth, fast action for improved agility and playability Lacquered Brass Body is produced using state of the art technology to ensure an instrument of the most accurate scale and playability The Wood Frame