Enhance your audio projects with the PT2399 Microphone Reverb Plate, specifically designed without a preamplifier function. This board focuses on delivering high-quality reverberation effects, ideal for amateur and professional audio applications. Compatibility and Power Requirements: The reverb plate operates efficiently with a DC 6V to 15V power supply, making it versatile for use in various electronic setups. your power source matches for optimal performance. Compact and Efficient Design: Measuring just 50x50mm, this board is designed for easy integration into your existing audio equipment. The small footprint allows for installation in limited spaces without compromising function. Please Note: This product includes only the Reverb Plate and does not feature a preamplifier. It is essential to consider this when planning integration with your existing audio systems to compatibility and meet your sound enhancement needs. Note: The board is a separate reverberation board without microphone preamplifier Due to different batches, there may be differences in product printed text, which will not affect use. Colour:As Shown Material:PCBA Package Contents: 10 * microphone reverb board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.