The CM28 Wireless Lavalier Mic Set includes 2 transmitters and 1 receiver, offering 9 hours (TX) and 8 hours (Rx) of operation per charge. It s perfect for vlogging, podcasts, and live streaming. The TXs feature 4GB storage for 9 hours of Wav recording, with mono, stereo, and Ms modes.With advanced noise-canceling and one-click recording, it ensures clear audio. The set offers a 656ft (200m) transmission range and includes magnetic mounts for easy setup.Compatible with iPhone, Android, Pc, and Dslr, it includes multiple adapters for flexible use.