This turntable preamp is made of , which can withstand use. Features the iron, electronic component and ABS material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. This turntable preamp will make the sound quality better and smoother. Features -Color: Black -Material: iron, ABS, electronic components -Size: 10.30X5.70X3.00cm/4.05X2.24X1.18in -Note: comes with . Connector: 1/4 inch TRS Power supply: DC 12V Power Adapter: Input 220V 50/60Hz Output 12V 500mA - The turntable preamplifier can convert the sound signal into a line level signal. This advanced circuit sound preamplifier has an input sensitivity pickup. - Low Noise Operation: Provides excellent performance through its low noise audio amp. Ultra-low audio performance, providing excellent sound quality - Connect the preamp to your turntable and audio equipment (such as a power amp), then connect the power amp to your speakers, and you can enjoy better sound with less distortion - Note: Please keep external power supply from sources, otherwise it will cause noise and other adverse to the product - Note: This phono preamp must be used with a power amplifier Package list: 4 x Phono Preamp 1 Adapter