1. This Pickup and Preamp system is a must-have for any acoustic guitar player looking to enhance their sound. With active electronics and a built-in tuner, this unit is perfect for gigs and live performances. 2. The black color and bridge position a sleek addition to any acoustic guitar, and it is specifically designed to fit acoustic guitars. 3. This unit comes with a piezo mic and EQ beat set to further adjust and optimize your sound. Get the most out of your acoustic guitar with this Pickup and Preamp system. 4. These preamp systems feature Volume, Tone shaping, and Phase controls a pre-wired Fishman Sonicore pickup and low profile control knobs. Size Onboard:51mm x 51mm (2x 2Inch) Jack board:48.8mm x 48.9mm (0.189x 0.19Inch) Volume control. EQ tone shaping control. Phase switch. Low battery indicator. Pre-wired Fishman Sonicore pickup for easy solder-free installation. Low profile control knobs. Onboard easy to read 7-segment LED tuner. Bass and Treble controls for enhanced tone shaping. Due to different product batches, the appearance , which does not affect the use. Colour:Black Material:Plastic Package Contents: 1 x pickup 1 x end pin jack 8 x screws 1 x tags 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.