DURABLE?This is made of high quality metal and ABS materials, which is not easy to damage and is tough and durable. GOOD PERFORMANCE?This not only eliminates interference noise, but also realizes high quality sound, and adjustable volume control effectively avoids . CLAMP DESIGN?This is easy to use and adopts a design with a clamp, which can be firmly clamped at the neck of the instrument. ?This can be connected to different recording equipment to perfectly collect and transmit your performance so as to obtain excellent sound quality. size: : 6.3 x 4 x 3cm, Cord length: 2.8m Material: ABS+metal colour: Black Package Contents: 1 x violin Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.