Features:
-Small footprint fits many guitars
-Volume control
-Bass, Middle and Treble control knobs
-Built-in tuner with LED display
-Phase switch
-Low battery indicator
-Unique pivots design for instant 9-Volt battery access
-Pre-wired Fishman Sonicore pickup for easy, solder-free installation
-Low profile control knobs
-Onboard anti-feedback control (Notch)
-Brilliance control for additional tone shaping
-Built-in microphone with mic blend level control

Specification:
-2.20" W x 3.3" L x 1.625" D (55.8mm x 84.2mm x 41.3mm)
-Hole size: 2.0" W x 2.662" L (50.8mm x 67.62mm)
-Screw spacing: 1.785" W x 2.795" L (45.34mm x 71mm)
-Package size: 24 x 16 x 5.2cm / 9.4 x 6.3 x 2inch
-Package weight: 117g / 4.1oz
-Part Number: PSY-301
Brand:hobbyant

Package Includes:
1x Fishman Onboard Preamps
1x End Pin Jack
4x Screws
1x Manual
2x Mounting Brackets