Item Type: Violin PickupMaterial: Metal, PlasticColour: BlackBattery Required for the Product: 9V Battery x 1 (Delivery Without Battery) 1Main Application: This pickup is used to adjust sound field, suppress acoustic feedback, and suppress noise. 2Improve Your Performance: This premium silent EQ pickup can perfectly collect and transmit your playing to sound with excellent sound quality. 3Easy Carrying: The pickup is compact and portable, making it easy to carry to various scenarios and performance venues. 4Simple to Operate: Just plug this pickup into your equipment and an amplifier or other recording device, very easy and convenient. 5Ideal Replacement: This pickup with premium sound transmission, is an ideal replacement for the old and damaged parts.