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String Bean™ for strings

String Bean™ for strings

1 set (4 beans)

(The price is in New Taiwan Dollars)

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  • Available for from 1/4 violins to adult cellos.
  • Shape: ball.
  • Dimensions: 12 mm diameter.
  • Weight: less than 0.2 g per bean.
  • Main load materials: functionally-synthesized eco-friendly PU with the special mechanical design.

Acoustic Research Summary (cello)

The Relative Intensity of the First Five Overtone Components to the Fundamental Frequency

The spectral analysis shows that the overtone components are much preserved, indicating String Bean™ technology unleashes the violin family achieve timbre complexity. 

The ratio of the overtone energy to the total sound output

Analysis of the spectral weight indicates that overtone energy takes more portions in the total sound output.  The String Bean™ technology is highly efficient in preserving the overtone energy, highlighting the effectiveness of the novel acoustic coupling.  The violin family sings never better.


Spectral analysis reveals that the String Bean™ technology produces a notable enhancement in the reverberation of all harmonics across all strings.  Our cutting-edge technology provides an exceptional acoustic experience, with the reverberation of every note akin to that of a musical hall.

String Reaction Rate

The String Bean™ technology reduces the string reaction time. As a result, the instrument is highly responsive, providing an unparalleled playing experience. (The reaction rate is illustrated, inversely proportional to the reaction time.)



China 2020.10257347.X
EU P513930EP/GMD


String Bean™ for strings are not edible.  Keep the reach out of children to avoid ingestion.

Shipping & Payment

Delivery Options

  • Registered Packets ( 3 ~ 5 days)
  • International Registered Air Small Packets (14 ~ 21 days)
  • Tcat - Room Temp. ( 2 ~ 4 days)
  • 7-11 Pickup only (C2C, 4 ~ 6 days)
  • Family Mart Pickup only (C2C, 4 ~ 6 days)

Payment Options

  • Apple Pay
  • Credit Card (Support Visa, Master, JCB, Union Pay with 3-D Secure)
  • LINE Pay