?Long Transmission Distance?: BOYA BY-XM6 wireless lavalier microphone adopts the 2.4Ghz transmission frequency can support up to 328ft of barrier-free transmission distance. (Please do not turn your back to the receiver or it will affect the signal transmission) BOYA provides 2-year warranty, please contact us if you have any questions. Ultra Long Battery Life?: The 2.4GHz microphone for iphone adopts the latest power storage technology and signal transmission scheme to optimize the power consumption. Continuous working time can exceed 7 hours. The Lightning Receiver is powered by your Lightning device. The transmitter can be charged via its USB-C port or a charging case (not included). Real-time Monitoring & Mono/Stereo? The microphone for iphone has a 3.5mm interface and supports real-time monitoring. Allowing you to check the recording effect at any time and avoid unexpected situations. The 2RX With RX model supports mono/stereo switching. In mono mode, the audio of the left and right channels will be mixed and output. In stereo mode, the audio of the left and right channels will be output separately. 6-Level Gain Adjustment?The clip on microphone wireless has a built-in omnidirectional high-quality microphone, which can set up to 6-level gain effect. The radio range can be expanded by 20%.With just one transmitter, you can record the voices of people around you.Ideal for Interviews, VLOG, Live Stream, Online Meetings/teaching, etc. Stable Signal Transmission? BOYA wireless microphone for iphone has built-in PIFA antenna, adopts the exclusive 2.4GHz ISM wireless adaptive frequency modulation scheme, and the barrier-free transmission distance can reach 328 feet. It provides you with stable and clear audio signal transmission. BY-XM6 S4 consists of 2 transmitters and 1 Lightning Adapter receiver. Designed for iPhone/iPad/IOS Lightning devices. More Choices with OLED?The wireless lapel microphone adopts OLED HD display screen, and the device information is clear at a glance. The iphone microphone for video recording provides signal strength, real-time volume level, remaining power, gain level and charging effect. You can manually set the backlight time, output volume, microphone gain level, audio input mode, etc. Freely set the required parameters to make the recording more professional.