- The seal and the metal echo panel contribute to strong resonance and powerful projection, forming the core of the instrument’s sound. - 16-hole flute with bent, open-hole and closed-hole configurations; available in two form factors: a bent folding type and a compact folding type; made from white copper; designed with appropriate spacing to be easy to play for players with different hand sizes. - Uses a memory spring for long life; the needle spring provides a comfortable pressing force and helps maintain a steady playing rhythm. - The rounded rectangular mouthpiece opening enhances the bass range of the flute; the E-tone split offers an alternative fingering to MI, making sound production easier for beginners. - Durable construction and flexible design make it suitable for practice, study, and performance in various settings. - Use scenarios: - Beginners and students in lessons or home practice can benefit from the comfortable fingering options (E-tone split) and easy playability across hand sizes. - School bands or music classes can rely on the instrument’s strong resonance and stable rhythm to support ensemble performance. - Practicing or performing in limited spaces or while traveling, thanks to the compact folding design and versatile 16-hole configuration.