1. Intuitive LED display 2. Tuning modes: C (Twelve Equals), G (Guitar), B (Bass), V (Violin), UC (C ukulele), UD (D ukulele) 3. Size: 5 × 3.7 × 2.7 cm 4. Tuning range: A0 (27.5Hz) ~ C8 (4186Hz) 5. Lightweight, compact and easy to carry 6. Operating instructions: long press the key, short press to switch between various instrument modes; A4 value button (only available in G / B mode), in guitar and bass mode, press b to adjust the semitone (b, bb)
