Plug and play, automatic pairing: No need to download applications or Bluetooth. Connect the receiver to your device, turn on the microphone, they will automatically connect and be ready to use$$ Widely applicable: This mini microphone is suitable for iPhone, iPad, and most Android 1 phones. (Oppo/Vivo/iqoo/Realme brand phones must have OTG enabled to connect to this microphone) Some phones do not support connecting external microphones. Search and download the Open Camera software in the app store or browser. Open Camera - Settings - Video Settings - Audio Source - External Microphone. Then, you can connect the microphone to your phone Ultra long working time: Equipped with a high-quality rechargeable battery of 80mAh, fully charged for 1 hour, it can work continuously for about 8 hours. You can also record while charging. Effective distance: After wireless connection, the effective distance can reach up to 20 meters, with no obstacles. DSP intelligent noise reduction: The built-in DSP intelligent noise reduction chip has strong anti-interference ability, which can effectively recognize audio tracks and record clearly in noisy environments. Built in high sensitivity acquisition, 360 degree acquisition, high-frequency support up to 20kHz$$ Self synchronization technology: adopts real-time self synchronization technology, with a transmission delay of only 0.009s, and can record sound synchronously. Portable design: wireless design. Get rid of the chaotic cables. Secure the wireless collar microphone in place with a small clip, making it easy to release both hands$$ Reliable performance: This wireless microphone enhances professional full band audio.