The VF-10 system is a wireless system for violins that operates on the globally available 2.4GHz band. The system also includes 8 built-in effects to enhance your expressive performance. Thanks to a specially designed lightweight attachment, it avoids interference with the instrument’s resonance. The parts that touch the instrument are made of cork, minimizing damage to the varnish while allowing for easy attachment. We do not mark merchandise values below value or mark items as “gifts” – Japan, US and International government regulations prohibit such behavior. About Importer’s Obligation. Thank you for your understanding.