Features: 1. Volume Control 2. Bass, Middle and Treble Control Knobs 3. Built-in Tuner with LED Display 4. This onboard preamp system is designed and engineered to provide maximum control, performance and quality in a small, unobtrusive form factor. The compact and sophisticated system features volume, bass, middle and treble controls, phase switch and built-in tuner with LED display. Specifications: Fishman's lsys onboard preamp systems strive to provide a small footprint for maximum value. Available in three models, these preamp systems feature volume, tone shaping and phase controls pre-wired Fishman pickups and low-profile control knobs. Also includes a low-battery indicator and a separate battery compartment. Fishman lsysand Features Small footprint fits many guitars. Volume Control. EQ Tone Shaping Control. Phase Switch. Low-battery Indicator. Pre-wired Fishman Sonicore pickups for easy solderless installation. Low-profile control knobs. Onboard easy-to-read 7-segment LED tuner. Bass and treble controls for enhanced tone shaping. Package: 1 x Pickup Notes: 1. Please allow 0.5-1 inch difference due to manual measurement (1 inch = 2.54 cm) 2. Due to different computer screens, the color of the actual product may be slightly different from the product image. 3. Thank you for your understanding.