1、No any static or humming sound will be produced by such a device. And it is made of high-quality material. 2、Actually, it can be a good chocice for someone who sing song in small bars, bars, mobile discos and karaoke for its microphone system. 3、Such desktop microphone device is able to make clear and loud sound, which means that it can allow a clear amplification of the sound. 4、Being not only used on the stage of family, but also it is suitable for any other occasions where a beautifully amplified sound is required. . 5、Being perfect for karaoke, weddings, and public speaking, this desktop microphone wireless kit is also suitable for duets. Item Type: Desktop desktop microphone UHF professional wireless mic with base Comprehensive indicator Frequency Stability: ≤ 10ppm Modulation Method: FM Audio Response: 40-16000Hz Dynamic Range: >105dB (A weighting) Comprehensive Distortion: ≤0.5% (@1KHz) Audio Processing Method: Dynamic compression and expansion technology Working Temperature: 0C to +50 °C Receiver Oscillation Mode: Quartz crystal oscillation Audio Output Level: 0-3mV Audio Output Impedance: 600Ω Artifact and Harmonic Suppression: ≥85dB Working Power Supply: AC12V-15V/200mA Microphone Oscillation Mode: Quartz crystal oscillation Frequency Stability: ≤ 10ppm Maximum Modulation: ±50KHz Maximum Output Power: 30mW Maximum Input Sound Pressure: 130dB SPL Harmonic Radiation: <-55dBc Battery: 2 x AA batteries (not included) 2 x Base 2 x Goose Tube Microphone 1 x Receiver 1 x Power Adapter 1 x Audio Cable 1 x Instruction Manual 2 x Bracket 2 x Microphone Cover