3 In 1 Tuner Metronome for guitar, bass, violin etc Well built and versitile piece of kit. Tuner, metronome and pitch generator all in one. Can be used to tune virtually any other instrument. Also suitable for 12 string guitars and non-standard tunings. Has jack input for electric guitars Has built in microphone to pick up the tone in normal situations. Also supplied with a clip-on microphone which clips on to your instrument. This is useful if background noise levels make normal tuning difficult. A4 can be adjusted from 430Hz-449Hz if need be. (default is the standard 440Hz). The metronome can be set from 34bpm to 230 bpm and can run a varitey of time signitures. It can also be set to play a swing pattern. The tone generator will play any note from C4-C5