This is a digital metronome designed for musicians. It has a black plastic body and weighs 130g. It can be powered by 3 AAA batteries or Type-C USB. It has a digital display and adjustable volume. It features English vocal counting and one-touch operation. It has a tempo range of 40-208 beats per minute and a timer that can be set for 15, 30, 45, or 60 minutes. It is suitable for use with pianos, violins, and ukuleles. The package includes the metronome and weighs 175g.