EMT-320 - Digital Metronome, Tuner & Tone Generator. Chromatic Tuner for Guitar, Bass, Violin, Viola, Cello and Ukulele by Musiqa.co. This 3 in 1 Digital Metronome is a combination metronome/tuner/tone generator: all 3 in 1 musical accessory for professional musicians and students alike. A compact tool for pitch & rhythm training makes it a favorite tool for guitar, string, wind & brass musicians and those aspiring students who need an edge. Easy tempo settings  30 to 240 beats per minute in single increments. Green LCD backlight for enhanced visibility. Easy to read, even in a darkened orchestra pit or backstage. So compact & light weight you can take it with you everywhere. 2 Year Satisfaction Guarantee. Love it or return it for a full refund.