Features:1. Volume Control2. Bass, Middle and Treble Control Knobs3. Built-in Tuner with LED Display4. 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 providea small footprint for maximum value. Available in three models,these preamp systems feature volume, tone shaping and phase controls; pre-wired Fishmanpickups and low-profile control knobs.Also includes a low-battery indicator and a separate battery compartment.Fishman lsys+ FeaturesSmall 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 * PickupNotes: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.