Features:  【Compact and lightweight】Small footprint fits many guitars.It is compact and lightweight,you can carry it anywhere that isuitable for your music performance, a good helper for your stsage. 【Multi function】These preamp systems feature Volume,Tone shaping,and Phase controls;a pre-wired Fishman Sonicore pickup and low profile control knobs. 【Voice improvement】Low profile control knobs.Onboard easy to read 7-segment LED tuner.Bass and Treble controls for enhanced tone shaping. 【Easy install】Pre-wired Fishman Sonicore pickup for easy solder-free installation.Therefore,it is very convenient for you to install,there is no much trouble to assemble. 【Volume control】Volume control.,EQ tone shaping control.,Phase switch.Low battery indicator.You can adjust the volume as you want to play a more beautiful music for you, your friends or others. Specifications:  Material: plastic Color: black Size(about): 5.1x5.1x3cm/2x2x1.2inch(LxWxH) Package Included:  2pcs x  Guitar Pickup Preamp  1pc x  Manual Note:  1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.