... quality 3 in 1 LCD Digital Guitar Tuner Metronome Tone Generator For Acoustic Guitar Electric GuitarDescriptions:This product is ... is a perfect performance product.Specifications:Function:Tuner,Metronome,Tone Generator.Tuner:Tuning Mode:Auto,Manual.Tuning range: 12- ... 30-250(bpm)Volume adjustable.Tone Generator:Falling tone option:Falling tone option:"b","bb","bbb","bbbb".Tone range::"C","F","bB","bE ...