Ultra-compact phono preamplifier with metal casing, portable and durable. 2xRCA (left and right) input, 2xRCA (left and right) output, 1x1/4 inch output, multiple connection options. Features level and volume control knobs. Converts phono signals to line-level signals. Delivers ultra-low noise audio performance with excellent sound quality. Specification: Item type: Phono preamp Connector: RCA, 1/4 inch connector Power supply: DC 12V Input: 110-240V 50/60Hz Output: 12V 500mA Note: This is a preamplifier, not a power amplifier. Intended for professional or experienced customers. Plug Type: US Plug, compatible with Canada, Mexico, Thailand, Philippines, Taiwan, and other regions using US standard voltage. Size: 10.3 x 3 x 5.7cm Material: Metal Color: Black Package Contents: 1 x Phono Preamp 1 x Adapter Note: Light and display differences may cause slight color variation between the image and actual item. Measurement error allowed is +/- 1-3cm.