Professional Wireless Lavalier Mic Set NEEWER CM28 is a mini clip on lapel microphone kit with 2 transmitters (TX) and 1 receiver (RX). The TX lasts for 9 hours and RX for 8 hours once fully charged, ideal devices for outdoor audio & video recording, stage, vlogging, podcasting, interview, and live streaming. Charge them twice in just 1.5 hours each time with the included protective charging case. NOTE: For optimal battery longevity, please fully charge the mic set before first use Standalone Recording Accessories The TXs double as recording pens with each 4GB storage, saving up to 9 hours of uncompressed 48KHz WAV audio files. 3 audio export modes: Mono, Stereo, and Ms. Support one tap decibel (dB) gain. An LCD screen displays modes, volume, battery levels, connection status, noise reduction, etc. These small wireless lav mics are portable essentials as a starter tool kit for TikTok, YouTube, and other social media content creators, influencers One Click Noise Canceli