Feature:1. PREAMP PREAMPLIFIER: This is compact phono preamp preamplifier, which adopts the metal case, portable and durable, easy to use2. CONNECTION OPTIONS: With the (L R) input (L R) output 1x1/4in TRS output, phono preamp preamplifier has multiple connection options3. CONTROL KNOB: Adopts small and exquisite shape, with level and volume control knob, better match different audios signals4. SIGNAL CONVERSION: This amplifier converts telephone signals to line level signals, and providing excellent performance5. SUPERIOR SOUND QUALITY: With low audios performance, which provides excellent sound quality for high quality listening experienceSpecification:Item Type: Phono Preamp PreamplifierMaterial: MetalColour: BlackFrequency Response: RIAATHD: 0.06%typ at 40dBu 1kHzAdded Value: 35dBSignal to Noise: 68dBu at 0dBu, A WeightedInput Sensitivity: 5.3mV at 1kHzPower Supply: External Power Supply, 12V 150mA 50 60Hz (US Plug 100-240VAC).Package List:1 x Phono Preamp Preamplifier1 x User Manual1 x Power Adapter