A great product from Yamaha with quality. This tuner is specifically designed for violin, viola, cello and bass.  It can tune all 4 strings on all of these 4 instruments.  With its very easy operation, you can toggle between the automatic and manual mode.  It comes with a built-in microphone and it automatically detects the note being played so you can tune completely hands-free. Or you can choose to tune manually by setting the note you desire and tune. The built-in input jack allows you to tune with a tuning pickup.  It features a very easy to read digital display and easy to use 3 button operation. The display registers the string name and mode automatically.  With its fast response time, you can tune any of of these 4 instrument accurately and quickly. 

• Pitch shift function of A4 (435Hz to 446Hz)
• Built-in mic and in/out jacks
• LCD advanced display with a + 50 cent accuracy range
• LED tuning guide display with a + 50 cent accuracy range
• Color: Dark Brown
• 9V battery included
• Size: 4 1/2" Length, 2 1/2" Height, 1" Thickness