Planet Waves PW-CT-08 Tuner/Metronome Chromatic Tuner incl. Metronome, compact, Calibration from 410-470 Hz, Metronomefunction from 20 to 250, 1/4" In and Outputs, various beats such as 2/4, 3/4, 4/4, subdividing in various ways such as 1/4-notes, 1/8-notes and triplets