Audio Signals Digital Noise Reducer & Low Pass Filter for HF Radio ShortwaveEnhance your radio experience without DSP Key Specifications: Power Supply: USB-C 5V or 6~15V DC Power Consumption: Maximum 4W Built-in Speaker Output: Maximum 3W Signal Input: 3.5mm audio jack Signal Input Level: Maximum 5 Vp-p Noise Reducer Level: 10 levels (OFF to 9) Low Pass Filter Level: 10 levels (OFF, 6KHz to 200Hz) Display: 0.96 inch TFT screen Dimensions: 88mm (W) x 38mm (H) x 100mm (L) Weight: 230g Product Functions: This versatile device is designed to process audio signals with both a Digital Noise Reducer (NR) and a Digital Low Pass Filter (LPF). It is ideal for use with shortwave radios lacking DSP technology, significantly enhancing your communication experience during QSOs. Package Includes: 1 x Digital Noise Reducer 1 x Type-C Cable 1 x Signal Input Cable Transform your audio experience and enjoy clearer sound with our Audio Signals Digital Noise Reducer and Low Pass Filter.