1PREAMP PREAMPLIFIER: This is compact phono preamp preamplifier, which adopts the metal case, portable and durable, easy to use 2CONNECTION OPTIONS: With the (L R) input (L R) output 1x1/4in TRS output, phono preamp preamplifier has multiple connection options 3CONTROL KNOB: Adopts small and exquisite shape, with level and volume control knob, better match different audios signals 4SIGNAL CONVERSION: This amplifier converts telephone signals to line level signals, and providing excellent performance 5SUPERIOR SOUND QUALITY: With low audios performance, which provides excellent sound quality for high quality listening experience Item Type: Phono Preamp Preamplifier Material: Metal Colour: Black Frequency Response: RIAA THD: 0.06%typ at 40dBu 1kHz Added Value: 35dB Signal to Noise: 68dBu at 0dBu, A Weighted 1 x Phono Preamp Preamplifier 1 x User Manual 1 x Power Adapter