2 MICs & 1 RECEIVER: The J13 Wireless Lavalier Microphone includes 2 mics and 1 receiver for live streaming in pairs, vlogs, video recording, interviews and more. Simply power on the microphone and clip it to your lapel, then plug the receiver into your mobile phone, the pairing process takes about three seconds. Plug and play, no APP or Bluetooth required.3 Levels of Noise Reduction, Reverb and Mute Mode:1. Click thepower on button to switch to Noise Reduction Mode, and click thebutton to cycle through the noise reduction levels, up to 3 levels. 2.Triple-click the power on button to switch to Reverb Mode, and triple-click again to exit from Reverb Mode.3. Double-click the power on button to switch to Mute Mode, and double-click again to exit from Mute Mode.Adopting 2.4GHz transmission technology with low latency and strong anti-interference capability, it can stably transmit clear audio content up to about 20M（65FT）. (without obstacles) Microphone using omni-directional microphone, built-in noise reduction chip, can be 360 ° omni-directional dead-angle-free radio, do not let go of every sound details, highly restore clear vocals, in the noisy outdoor environment, but also can be clearly recorded vocals.The microphone has a built-in 60 mAh battery that works for about 4-5 hours, and with the charging compartment for 300 mAh batteries, you can charge the microphone about 2-3 times. The microphone also has a low battery reminder function: when the battery is low, the indicator light will light up red and flash every 10S.wireless microphones, compact size, portable clip, easy to clip on collar, wireless design, free to walk around, best choice for live streaming, video creators.