The Barcus Berry 4020 Pro Planar Wave Harp Pickup System is a high-quality pickup system designed for violins. Made by the brand Barcus Berry, known for their innovative musical instrument technologies, this system is specifically crafted for capturing the rich tones and nuances of the violin. The Pro Planar Wave technology ensures a clear and natural sound reproduction, making it an ideal choice for professional violin players looking to amplify their instrument without sacrificing quality.