WSM-330 Mechanical Metronome.

Features:
High Accuracy Mechanical Metronome.
* Precision Spring Mechanism
* Variable tempo from 40 to 208 bpm
* Downbeats (with different tone than the beat per measure tone)
* Traditional tower shape.

Specifications:
* Top Grade Metal Mechanism with Bell
* Tempo: 40-208 bpm (Tolerance < 1% )
* Beats: 0, 2, 3, 4, 6
* Dimensions: 101(L)x62(W)x24(H)mm
* Weight:  48g.