Yamaha Digital Piano Black ME-340PF Metronome,

It has a keyboard-like pronunciation button and a dial-type volume adjustment function that allows you to hear the reference tone you want with one push. You can control the volume with one hand. The three-dimensional shape provides a stable stand function at the bottom of the back. Memory backup function, auto power off (cancellable) Sound source: Standard pitch/C-B notes (12 notes) one-touch pronunciation (410-450Hz) Metronome: 30-250/min. Equipped with a convenient Tap function. Four LEDs flash continuously to indicate the tempo and beat.