Visual Dictionary Online

quartz metronome click to hear : quartz metronome

Quarzmetronom click to hear : Quarzmetronom

quartz metronome image

sound signal click to hear : sound signal

akustisches Signal click to hear : akustisches Signal

standard A click to hear : standard A

Kammerton A click to hear : Kammerton A

light signal click to hear : light signal

optisches Signal click to hear : optisches Signal