1. High-fidelity sound effect and deep restoration of sound. Digital processing technology is used to restore and reduce noise. broadcast-level sound quality makes the sound quality even better. 2. Built-in DSP active noise reduction technology DSP chip can directly optimize the signal from input to output. The delay of the live broadcast is small, and the noise and frequency effects are excellent 3.1 seconds automatic connection plug-and-play without cumbersome settings Automatic pairing plug-and-play 4. 360 high-definition surround pickup, high-sensitive capacitors, all-round cornerless radio, front, rear, left, and right radio, delicate and clear recording of every sound detail 5. The wireless one-to-two solution meets the need for two people to and record at the same time Model: Microphone Applicable objects: dedicated for cameras, dedicated for recording, dedicated for radio and television, dedicated for conferences, dedicated for interviews There is wireless: no Pointing features: omnidirectional / non-directional Bluetooth version: 4.1 Signal-to-noise ratio: 60dB Frequency response range: 20Hz-20KHz Rated power: 5 Rated voltage: 5 Whether built-in battery: built-in battery Colour:black Material:plastic Size: 6.3 x 1.18cm type:B:for Package Contents: 2 x microphone 1 x for receiver 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.