Check the listing for details. Acoustic guitar Pickups Classic Blend Preamp Microphone and Pickup System. Condition: New. Listed at 138.00 USD. Add Great Plugged-in Tone to Virtually Any Acoustic Guitar! Fishman classic Blend Onboard preamp system designed and built to offer maximum control, performance and quality in a small, unobtrusive format. The compact sophisticated Presys system features Volume, Bass, Mid and Treble controls, a Phase switch, mic blend, notch and a built-in tuner with LED display. Preamp also include a pre-wired Fishman Sonicore pickup for solder-free, plug and play installation, a low battery indicator, low profile control knobs and a unique pivot design for easy access to the battery compartment. Fishman Pickups are loved by music lovers around the world, so some unscrupulous merchants make some fake junk products to serve as the original Fishman sale and earn high profits from them, thus misleading consumers to pursue fine music. There is a big difference between the fake Fishman and the original product. From the appearance and very obvious identification, the quality and sound are very obvious. Please stay away from fake products