Donner Mechanical Metronome DPM-1 For Musician Guitar Piano Drum Violin Track Beat And Tempo Black cocoon Sensitivity: -30dB +/- 3dB /

Sensitivity: -30dB +/- 3dB / 0dB=1V/Pa

The power cord and signal cable are both 2 meter (6

a plastic used in bullet proof glass

Alnicov Brass Roller Saddle Tune-O-Matic LP Guitar Bridge & Tailpiece Set Chrome

Wire Length : 2

Donner Mechanical Metronome DPM-1 For Musician Guitar Piano Drum Violin Track Beat And Tempo Black cocoon Sensitivity: -30dB +/- 3dB /Donner Mechanical Metronome DPM 1 For Musician Guitar Piano Drum Violin Track Beat And Tempo Black Color: Black Specifications: Color: Black Material: Plastic + Copper Movement Material: Full Metal. Casing Style: Classic Pyramid Tower Style Precision: Spring Mechanism Tempo Range: 40~208bpm Tolerance: Less Than 1%. Beats: 0,2,3,4,6 Size: 33115205mm Net Weight: 525g Caution: 1. Use a tool into the groove on the bottom , then open it; 2. Open the bottom