The MT-40W features a metronome, chromatic tuner, and tone generator in a compact design. The large display shows all adjustable parameters, controlled via intuitive buttons. Connect electric instruments, or use the included pickup for acoustic, wind, or brass instruments via the 1/4-inch (6.3 mm) input jack, or use the built-in microphone. Tuning range: A0 (27.5 Hz) to C8 (4186 Hz) Tuning mode: Chromatic Tuning key options: C, F Tuning precision: ±1 cent A4 reference range: 430–450 Hz Detection method: Microphone or line-in Display: LCD and LED Tone generator reference range: 2A to 6A Tone generator precision: ±0.5 cent Metronome tempo range: 30–250 BPM Beat subdivisions: 0–9 Rhythm patterns: Standard Metronome accuracy: ±0.3% Metronome sound: Electronic Power supply: 3 V (2 × AAA batteries, not included) Color: Black Material: ABS plastic and electronic components Dimensions: 105 × 18 × 65 mm Package includes: 1 × Tuner 1 × Pickup Note: Colors may vary slightly due to lighting and screen settings. Dimensions are subject to a tolerance of ±1–3 cm.