Boss TU-30

Specifications
Tuner
Reference Pitch: A4 = 435 Hz--446 Hz
Tuning Range: E0 (20.6 Hz)--C8 (4,186 Hz)
Internal Tuning Accuracy:+/-1 cent
Metronome
Tempo: 30--250
Rhythm Style: Quarter note, Eighth rest and eighth note, Eighth note, Triple, Triple with center rest, Sixteenth note, Clave (3-2, 2-3)
Beat: 0--9
Input Impedance
680 k ohms
Indicator
LCD Display, Tuning Guide LED
Connectors
Input jack
Power Supply
Dry Battery (R03/LR03 (AAA) Type) x 2
Power Consumption
15 mA (Metronome mode)
8 mA (Tuner mode and A4 = 440 Hz input)
*Expected battery life under continuous use (Carbon): Approximately 50 hours (A4 continuous input)
These figures will vary depending on the actual conditions of use.
Accessories
Dry Battery (R03 (AAA) Type) x 2
Owner's Manual
Leaflet ("USING THE UNIT SAFELY", "IMPORTANT NOTES" and "Information")
Size and Weight
Width
90 mm
3-9/16 inches
Depth
60 mm
2-3/8 inches
Height
25 mm
1 inches
Weight (including battery)
90 g
4 oz