shvain · 弦外音国际

Music at Your Fingertips

Premium strings & smart tuners, crafted for every musician

Why shvain?

Professional Quality

Premium materials, precision craftsmanship. Every batch is manually tested before shipping.

Innovative Technology

Special anti-corrosion treatment, lasting far longer than ordinary strings.

Fair Pricing

No premium hype — great tone made affordable for players at every stage.

Hardware + Software

Hardware paired with a free tuner app — from string change to tuning, all in one place.

Global Reach

Serving musicians in multiple countries — support that cares about your experience, not where you bought it.

Eco-Conscious

Recyclable packaging, reducing unnecessary environmental burden.

Ready to Tune?

Download QYHC Tuna, Free to use

Learn More

FAQ

How often should guitar strings be replaced?+
It is recommended to replace them every 1-3 months, depending on frequency of use and hand sweat.
How do I choose the right string gauge for me?+
Beginners are recommended to use light gauge (.010-.047), while intermediate players can opt for medium gauge (.012-.053).
What tuning modes does the Tuner App support?+
It supports multiple modes including standard tuning, open tuning, and half-step down tuning.