Features: Enhancing sound with this digital noise suppressor, featuring digital noise reduction (NR) and low pass filtering (LPF) technology to process and reduce unwanted noise for improved communication quality. Crafted from aluminum , this device integrates advanced digital processing to filter frequencies, making suitable for equipment like shortwave radios. Ideal for amateur radio operators, shortwave enthusiasts, and users seeking clearer sound in communication scenarios where unavailable. Perfect for sound intensive activities, it deliver sound to elevating your listening and transmission experience in real time communications. Effortlessly achieve enhanced processing and background noise reduction with this efficient, portable solution that seamlessly connects to various sound devices Specifications: Component:Aluminum Size:Approx.8.9x13cm/3.5x5.12inch Power supply: USB C 5V or 6-15V Power consumption: 4W Built-in Loudspeaker output: 3W Input: 3.5mm Low-pass filter levels: Off, 6KHz, 3.5KHz, 2.4KHz, 2KHz, 1.8KHz, 1KHz, 700Hz, 500Hz, 200Hz (10 levels) Display: 0.96inch screen Package Includes: 1 Set Digital Noise Reducer note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.