With 6.35mm sound cable. ALUMINUM ALLOY DESIGN: Constructed from premium aluminum alloy, our piezo pickup amplifier ensures durability and portability. 1 x Piezo Pickup Preamp. GAIN FUNCTION: When the capacitance value of the piezo pickup is 10nf, about 20db, the lower frequency limit is 30Hz, the input impedance is more than 10MΩ, the output impedance is 600Ω.
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