New, unopened. A YAMAHA tuner-metronome with a digital display. It has a volume adjustment function, making it ideal for practice. - Brand: YAMAHA - Model Name: TDM-710IV - Function: Tuner-Metronome - Display: Digital Display - Volume Adjustment: Volume control function I urgently ordered this in October and ended up buying two. I am selling one because I haven't used it. Retail price is ¥5,940. Thank you for looking.