and the machine can work normally

Nose tip distance: 17mm

M 33 L 36 XL 39 XXL 42 Note:

Intellectual Development

Continuous Calling: Up to 5

Tuner for Piano and Guitar, Universal Tuning Metronome Color:TM60C Black and the machine can workProduct information: Delivery range: Quarter notes=30 to 252 BPM Speed setting: 3 types; Swinging, full step, TAP TEMPO Rhythm range: There are a total of 10 types; "0 9" is a quarter note rhythm Rhythm mode: Duplets, Triplets, Triplets without central beat 4 times 1 Duplets without central beat Rhythm accuracy: 0. 3% Material: Plastic shell Model: TM 60 Packing list: Metronome + power cord Product Image: