Feature: 1. Electricity and wood dual purpose box-type electroacoustic violin, built-in high-output passive pickup, which can pick up the overall sound of the instrument, and an output interface, which can be connected to the speaker through the audio cable, and also equipped with EQ for adjustment. EQ adjustment is a kind of audio effect, mainly used to control the output size of different frequency bands of audio. Just plug in the speaker and connect to the power supply to use, very convenient to adjust the volume and tone 2. The panel is made of solid wood. The back and side panels are made of fine maple wood, naturally dried for 10 years, the whole log is made by hand, the craftsmanship is clear and natural, hand-carved with fine workmanship, the surface texture is dense and straight, and the spacing is even 3. The product comes with a bridge, and bridge needs to be stuck on the strings. You can tune the strings first and lock them on bridge, and then tighten the strings to use. Rosin is also included, and the bow needs to be coated with rosin when used for the first time 4. The product contains not only the violin, but also 4 strings, so that you can replace them if necessary. Contains 1 wiper, 1 bridge, 1 3meter cable for connecting speakers, 1 box of rosin and a shoulder rest. The shoulder rest can help you hold the violin while playing without causing your shoulder pain 5. Comes with a piano case. The internal protection structure of the case can hold the violin well and protect the violin from damage. The case can be carried or on the back, which is very convenient Specification: Item Type: Violin Set Panel: Solid wood Back Panel: Solid maple Side Panel: Solid maple Bridqe: Imitation ebony Pull Plate: Aluminum alloy Specification: 4/4. Package List: 1 x Violin1 x Bow1 x Bridge1 x Shoulder Rest1 x Wiping Cloth1 x Rosin1 x Connection Line4 x Strings1 x Violin Box