Neat little pre-amp, tailpiece-mountable. Full specs/instructions [url="http://www.qualitybassgear.com/Docs/User_Guide_M0070_Professional_Double_Bass_Preamp.pdf"]here[/url]. Twin piezo bridge wing pickup included, make unknown.
One side of the pickup has some surface wrinkling/damage, but works fine. Locking Neutrik jack, with tailpiece mount attached.
Also in the package are two long velcro loops for mounting, a short double-right-angle connector, and a printed set of the instructions linked to above.
Uses a PP3, or will work with phantom power if using as a DI box.
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Price includes postage.