Description Suitable for a variety of device and scenarios, Such as Camera,Car Audio,Subwoofer,Power Amplifier,Speaker and so on Intelligent noise reduction, human voice is clearer and more delicate, Built-in noise reduction chip, with Ai noise reduction algorithm, strong anti-interference ability, can effectively identify the original sound and still record clearly in a noisy environment Small, portable and comfortable to wear, The body is compact, flexible and changeable, and the shape is simple. It can be easily put into your pocket and does not take up space. Plug and play, automatic pairing, Plug it in and use it, no complicated operations required;Support any model with 3.5mm plug, no need to purchase additional adapter Note: For OPPO/VIVO/IQOO/REALME brand mobile phones, you need to search for "OTG" in the settings and turn on the OTG power supply to use them normally. Instructions: 1. First, pre and hold for 3 seconds to turn on the device, and insert the audio head of the receiver into the audio hole of the mobile phone or stereo, and the green light flashes to indicate that it is in the state to be connected; 2. Pre and hold the power button of the microphone to turn it on, and the red and green lights flash to indicate that it is in the waiting state; 3. The green light of the receiver is always on, and the green light of the transmitter is always on, indicating that the pairing is succeful; It is recommended to charge it directly after use to facilitate the next use, and cannot be charged while using.