DescriptionAre you looking for a professional, yet affordable violin tuner? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional violin tuner must meet you needs. It is one of the best choices for you.Features- Color: Silver. - Material: Stainless steel. - Size: About 3.5x0.8x0.8cm/ 1.38x0.31x0.31 inch. - Suitable for violin or erhu, meeting your different needs. - Piano head mouth blowing style, high sensitivity, pitch including A/D/E/G. - Stainless steel material, corrosion resistance. - Lightweight and compact, you can carry it with you. - Working principle: Blow this tuner with your mouth, it will produce a standard tone, and then listen to this standard tone, pulling the strings of the violin while adjusting the axis, let the pitch of the strings follow the standard tone produced by the tuner same height