2.4Ghz Wireless microphone, TRS, TRRS， for mobile devices like smartphone, PCs, tablet 
* built-in battery for 6.5-7 hours power supply
* Built with easy-to read, vivid, and informative OLED display.
* Up to 100m (328ft) operation range without obstacles.                                                      * 1transmitter+1receiver with Lightning  jack                                                                           

* Charging box included.