The Seiko SQ50V is a quartz metronome. It lets you choose from 2 types of sounds for tempo and beat. A red LED on the top gives a clear visual tempo indication as well. As an added feature, you get reference tuning tones for A (440) and Bb (446.1). It comes with a built-in tilt stand. 2 types of sounds for tempo and beat Red LED on the top gives a clear visual tempo indication Reference tuning tones for A (440) and Bb (446.1) Comes with a built-in tilt stand