Mechanical Metronomes for Piano Guitar Violin Bass Drum and Other Musical Instruments Loud Sound and High Precision Track Beat and Tempo for Beginners (Wood Grain) wood grain industrial_update_Aug2022 its powered by 2*AAA batteries

its powered by 2*AAA batteries

Please choose the size according to the orthodontist instructions

shielding interference outside the interval

94" (LW)Ultimate load: 1300NLocking load: 200N Package Content:3 x Toggle Latches

10 x blunt needle tips

Mechanical Metronomes for Piano Guitar Violin Bass Drum and Other Musical Instruments Loud Sound and High Precision Track Beat and Tempo for Beginners (Wood Grain) wood grain industrial_update_Aug2022 its powered by 2*AAA batteriesMechanical Metronomes for Piano Guitar Violin Bass Drum and Other Musical Instruments Loud Sound and High Precision Track Beat and Tempo for Beginners (Wood Grain) Product Features Metal MovementAll pieces of movement are made of metal. This can ensure long time use without error. It is very important for a beginner Incredible FeaturesOur product use high quality movement with high precision and stable performance. And it can provide 40 208 bpm beat