The SQ70 Multi-Function Quartz Metronome from Seiko features an easy operation tempo dial with a tempo range of 40 to 208 BPM (Beats Per Minute). It can be used by musicians, students, teachers, and performers, and as a learning tool during practice, for sight-reading, and more. The metronome features two types of tempo and beat sounds, and a 9 LED visual tempo indicator. It is built with a 1/8" headphone jack and a volume control, and includes seven different beat patterns with a memory backup. A 9V dry battery is also included.