Features: High-brightness display: The 6E2 tube uses advanced vacuum fluorescent display technology to provide a clear and bright display effect, making it easy to read information and enhancing the user experience. Multi-functional integration: This device not only functions as a headphone amplifier but also combines efficient fluorescent display. Low distortion rate: The product design ensures the purity of auditory transmission, making music sound more realistic. Compared to ordinary headphone amplifiers, the 6E2 tube's fluorescent display integration design not only saves space but also offering superior display performances, allowing users to monitor device in real time. In a recording studio, the fluorescent display can show real-time auditory, providing auditory engineers with accurate data references to ensuring the quality of every recording. Specifications: Model: P2 auditory input: 3.5mm /microphone /Radio auditory output: 3.5mm /3.5mm headphone port Display: sound/frequency modulation radio/clock Input impedance: 20KΩ Output impedance: 10Ω Fly: 0.003% Matching headphone impedance: 32-200Ω Headphone output power: 50mW 32Ω Frequency modulation frequency ranges: ①87.0MHz-108.0MHz②76.0MHz-90.0MHz③65.0MHz-74.0MHz Working voltages: DC9-14V Package Includes: 1x auditory Amplifier 1x auditory cable 1xPower Adapter note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.