Back-lit 3 in 1 for Guitar, Bass, Violin and Ukulele, this tuner features a built-in microphone, perfect for tuning any instrument, wind or strung. It also has a 1/4 inch jack input so you can plug in an electric guitar or bass, or use the included clip-on adapter to use it as a clip-on tuner. The metronome features flashing LEDs to keep in time when the volume is down and the option to change the time signature. There is a headphone output with volume control so you can easily hear the metronome when playing at high volume. It also includes a built-in stand so that you can prop it up on a table for easy visibility