Wireless iPhone Microphone with Charging Case: The BOYA wireless clip-on microphone includes two built-in microphone transmitters, a charging case, charging cables, and an MFi Lighting connector. Superior Noise Reduction: Professional-grade intelligent noise reduction chips are used in the construction of this cordless clip-on microphone, which effectively identifies the original sound and records clearly in noisy environments. Wireless lavalier microphone transmitters have built-in 95mAh rechargeable batteries that allow for pass-through phone charging while recording. You can concurrently charge your phone via the receiver's USB-C port while using the LAV Mic. 164-foot stable audio signal transmission range and 10-hour battery life are features of the NEW BOYA BY-WM3T condenser wireless microphone. Your device powers the receiver (it can be charged simultaneously).