Some more info.
The instruments have two differently-mounted transducers beneath the adjustable bridge for sound. There is a switch to toggle between them for bowing (arco) and plucking (pizzicato), because the strings vibrate differently under the bow than when plucked; each pickup in the "Polar Pickup" system is specialized for each task. The system is passive, with just a single volume and tone control (Unlike the CR and EU basses, which have an active preamp built-in).
Specifications copied from somewhere .
[b]SPECIFICATIONS:[/b][list]
[*]LENGTH: 132 cm (52")
[*]WEIGHT: exact weight not specified yet
[*]SCALE LENGTH: 106 cm (41.73")
[*]STRINGS: 4
[*]CONSTRUCTION: Solid maple
[*]COLORS: Transparent Amberburst Satin or Black Satin.
[*]FINGERBOARD: Ebony;
[list]
[*]4 string: 43.1mm (1.7") wide at nut; 89.0mm (3.5") max. width
[/list][*]POLAR™ PICKUP SYSTEM: The directional piezo pick-up system responds selectively to either vertical vibration (for the sustained plucked sound, like an electric bass guitar), or lateral vibration (for dynamic bowing, and a percussive plucked sound)
[*]ELECTRONICS: passive volume and tone control
[*]TRUSS ROD: Powerful rod design provides positive relief adjustment, accessible at nut.
[*]TUNING MACHINES: Fully encased worm gear tuners; black finish
[*]STRINGS: Light tension flatwound steel strings are standard. Accommodates all NS length strings and most long scale acoustic double bass strings.
[*]TRIPOD STAND: (standard) Black steel, fully adjustable, standing tripod design. Weight 3.2 kg (7 lbs.) Note: All basses come with the newest version stand with the redesigned head.
[*]GIG BAG: (standard) Padded gig bag with integrated bow pocket, handle and backpack style strap. External pockets for stands and accessories
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