ENO Mini Clip Metronome Digital Clip-on Metronomo with Generator Small and exquisite design, 2 in1 metro and tone generator. Tempo range: 30-250 bpm;tolerance: less than 0.5%. Beat: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. Tone generator: Standard A4. Dimension: Size: 20mm x 30mm x 56mm.Color: White.