Metronome piano,Metronome,Multi-functional, can be used for all types of instruments. Digital metronome,Metronome piano,Clip and lanyard hole design, easy and convenient to carry and fix. Use this metronome to mark time by the means of regularly recurring ticks or flashes at adjustable intervals. Tap function enables you to test your ideal tempo or tempo of a track. The product is designed with double channel headphone output.