METRONOME Product description This kit has a built-in speaker and a LED that indicates the beat. The volume and beats per minute can be adjusted with the potentiometers. There's also an on/off switch on board. Specifications Technical Data Specifications power supply: 9V battery (not incl.) Operational Properties Instruction Manual Languages Dutch, English, French, German, Spanish Product Basic https://elecena.pl/product/21260935/metronome 2022-07-17 https://elecena.pl/product/21260935/metronome 2025-07-09