Piano violin metronome

● Model: WSM- 240Power: 3V (2XAAAI) battery or DC 6V power supplyBeat sound: vocal, mechanicalA4 range: 420 ~ 460HzSpeed range: 30 ~ 250bpmBeat error: <1%Tuning error: <0.1%Beats:-/ 4, 1/4, 2/4, 3/4, 4/4, 3/8, 6/8Volume: 11 5 (L) x70 (W) x23 (H) mmCharacteristics:Metronome and Tone GeneratorThe measurement indicator facilitates the practiceThe pre-beat function (up beat) allows the player to start the song.The Vertical metronome (slowdown indicator) gives a more direct view of the rhythm.Using the encoder to control the speed makes the operation simpler and faster.Auto shutdown function. The machine turns off automatically if there is no operation for 5 minutes.Saves the settings when the power is turned off.