Features: Devices like Vinyl phonograph turntables can only output low-level signals from RIAA. However, most audio devices can only process line-level signals. Therefore, this product (HA150) must be used between the turntable and the audio devices (mixers, amplifiers, headphones, or recording devices) to reorganize and amplify the signal. HA150 is a mini stereo HiFi phono pre-amplifier for turntables with DC12V power supply. Supports RCA turntable input, 6.5MM headphone output, and RCA line output for active speakers. Compact low-noise phono turntable pre-amplifier that converts phono signals to line-level signals. Enhance your Vinyl listening experience with the MiniAudio Phono Pre-amplifier. Convert low-level signals from your turntable into line-level signals for seamless integration with your audio devices. Specifications: Model: HA150 Input Interface: RCA lotus nozzle Output Interface: RCA lotus port/6.35mm audio port Input Impedance: about 47KW Highest Input Level: -23.5dBV@1khz Output Impedance: about 50W Highest Output Level: +11.5dBV@1khz Frequency Response: RIAA Gain: 35dB Input Sensitivity: 5.3mV@1khz Power Supply: DC12V Size: about (length x width x height): 105x54x32mm/4.13x2.13x1.26in Power Adapter: EU/US/UK/AU Note: Due to problems with lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1 cm error due to manual measurement. Package includes: 1 pc HA150 1 pc 12V Power Adapter 1 pc 2XRCACable