The Xiegu GNR1 digital audio noise filter is an audio processing device integrating digital noise reduction and digital filtering. It can be widely used in the external audio processing sector of all types of wireless receiving equipment such as radio transceiver, receiver, radio, to effectively reduce the background noise, improve the signal-to-noise ratio, and improve the signal identifiable degree. Features 1. 3W audio output 2. Input/output volume adjustment 3. High/low input impedance select 4. Double audio output (3.5mm stereo output, RCA output) 5. Headphone output & Automatic switch (headphone/speaker output) Specifications Digital denoiser SNR upgrade degree: More than 22dB Digital filter frequency response range L-CUT adjustment range: 5Hz-1280Hz H-CUT adjustment range: 500Hz-5615Hz Headphone driving power: 100mW@Max Headphone output impedance: 16~64Ω Input impedance range: Low impedance of 16Ω, high impedance of 10kΩ Speaker output power: ≥3W (8Ω, THD≤0.2%) Speaker output impedance: 4~16Ω Operating voltage: DC12V:t15% Volume: 159*44*143mm What’s in the box? 1 x Xiegu GNR1 1 x Power Cable 1 x Audio Cable 1 x Manual