Feature: 1. Small footprint fits many guitars. 2. Volume control. 3. Bass middle and treble control knobs. 4. Build-in tuner. 5. Phase switch. 6. Pre-wire Sonicore pickup for solder-free, plug and play installation. 7. Low profile control knobs. Specification: The compact sophisticated Presys system features volume, turner, bass, middle, treble, phase, etc. It fits many guitars to offer maximum control, performance and quality in a small and unobtrusive format. Features: Small footprint fits many guitars. Volume control. Bass middle and treble control knobs. Build-in tuner. Phase switch. Pre-wire Sonicore pickup for solder-free, plug and play installation. Low profile control knobs. Specifications: Material: ABS Color: Black Type: 101, 201, 301 (optional) Cell: 2 x 9V cells (not included) Package Weight: 110g / 3.88ounces Package Size: 84.2 * 55.8 * 41.3mm / 3.31 * 2.2 * 1.63in Package List: 1 * Pickup 1 * Tail Nail 1 * Label 1 * Strap 1 * Trunking Bracket 4 * Screw 2 * Mounting Bracket 1 * Instruction Manual Package List: 1 * Pickup 1 * Tail Nail 1 * Label 1 * Strap 1 * Trunking Bracket 4 * Screw 2 * Mounting Bracket 1 * Instruction Manual