Features: Tube Phono Amplifier Stereo HiFi Auditory Preamplifier for turntables to deliver superior sound performances. Combines advanced technology with tube design to create more detailed music experience. Focused on phono preamplification, tube phono design ensures full, transparently tone and restores traditional music Stereo sound provides a more 3D dynamic Auditory effect and enhances listenings immersions. for record collection enthusiasts, audiophiles, users for Auditory. Specifications: Size: about 220x180x64mm/8.66x7.09x2.52in Standard: Optional Output Voltages: 2.0V Frequency Response: Standard Character 1KHz (Input: 10mV; Output: 0.7V) Power supply: AC110V (115V)/220V (235V) 60Hz/50Hz Weight: 2.5kg Package Includes: 1Set HiFi Auditory Preamplifier Board note: Due to the different monitors and light effect, the actual color the item might be slightly different from the color showed on the pictures. Please allow 1-2cm measuring difference due to manual measurement.