Item Type: Violin Pickup Material: Plastic + Electronic Component Colour: Black Tone Control: 12dB Volume Control: 0-10 Frequency Response: 20Hz~20KHz 1After installing this silent EQ pickup, your violin can produce a fuller and more beautiful sound. 2The active tone control system enables tone control and volume control, easy to adjust, no noise. 3You can use the violin pickup to DIY your violin playing, perfect for electric violin, cello and violin. 4The frequency response is from 20Hz to 20KHz, which will satisfy your various violin playing needs. 5Small size and light weight makes it much easy to assemble and install, and also very easy to carry. 1 x Violin Pickup 1 x Violin Pickup Stick 2 x Nut 1 x Washer 8 x Screw 1 x Wire Fixing Plate 1 x Cable Tie 1 x Output Socket 1 x Pickup Function Frame 1 x 3.5 Socket Nut