Feature: 1. [2 in 1 Device] The device combines tuning and metronome functions, bringing convenience for your performance or practice, ensuring accurate playing. 2. [Versatile Use] The digital metronome tuner can be used for Guzheng, Erhu, Pipa, Guqin, Nguyen, 12 Tone Equal Temperament, versatile and practical. 3. [Multi Functional Tuner] With a wide range of A0 to C8, various tuning modes, transposition settings, and tone calibration, meeting the needs of all instruments. 4. [Beat Metronome] With beats ranging from 30 to 260 per minute, various beat and rhythm modes, this metronome enhances your timing in a rich variety of musical styles. 5. [Compact and Portable] This electronic metronome tuner is small and easy to carry, allowing you to practice and perform wherever you go. Specification: Item Type: Metronome Tuner Material: ABS Tuning Projects: Guzheng (D, G, A, C, F, A ), Erhu, Pipa, Guqin, Nguyen, 12 Tone Equal Temperament Pickup Range: A0 (27.5Hz) to C8 (4186.00Hz) A4 Frequency Range: 410-450Hz Tuning Error: ±0.5 Cent Metronome Speed Range: 30 Beats/Minute to 260 Beats/Minute Beats: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 External Connection Port: Input Jack 3.5mm Mono Earphone Jack: 3.5mm Dual Channel Power Source: AAA x 2 (Not Included). Package List: 1 x Metronome Tuner 1 x Accessory