Item Type: NE5532 Amplifier Board Material: ABS Working Voltage: DC 9v-24v AC 8v-16v 1SOUND AMPLIFIER MODULE: This preamplifier module provides clear and powerful sound output, ensuring an exceptional listening experience. 2EXCELLENT PERFORMANCE: The use of NE5532 operational amplifiers guarantees excellent sound performance, delivering an accurate and detailed sound reproduction. 3SINGLE POWER SUPPLY DESIGN: With its simplified circuit layout, this amplifier module operates on a single power supply, making it extremely convenient to integrate into various sound setups. 4PRE AMPLIFIER BOARD: This pre amplifier board enhances the gain of sound signals, allowing for improved sound quality and a more immersive sound experience when paired with amplifier modules. 5COMPACT DESIGN: The compact design of this amplifier module makes it suitable for a wide range of sound applications, ensuring seamless integration into different sound setups and environments.1 x Board