1、Live Multiplayer Recording: Support multiple people live recording at the same time, signal stability, multiple sets of simultaneous use without interference. 2、Wide Application: Receive all directions of sound, this lapel microphone set is suitable for interview vlog, multi person shooting, web broadcast and so on. 3、4G Band Specific Chip: Built in 4G band specific chip, large data flow, stable and reliable signal. Low latency, plug and play at any time. 4、80KHz Stereo Sound: Up to 80KHz stereo sound collection, for different noise environment, filter a variety of noise. 360° all round surround sound, clear sound, restore original sound. 5、Long Endurance: Single charging time of wireless microphone can be up to 7 hours, with Type C interface charging bin can be up to 35 hours. 4 x Microphone1 x Type C Receiver 1 x Charging Box 1 x Type C Charging Cable 4 x Wind Cover 1 x Manual Item Type: Lapel MicWeight: Approx.378g / 13.3ozMaterial: ABSTransmission Distance: Approx.300m / 328.1yd (Barrier Free Environment)Operating Frequency: 2.4GHZFrequency Response Range: 20HZ-20KHZTransmission Delay: 15msCharging Input Standard: DC 5V 1ADuration Of Single Use Of Microphone: About 7 HoursMicrophone Battery Capacity: Built In Lithium Battery, 70mAh Capacity (Delivered With Built In Battery)Charging Bin Battery Model: 802545 Capacity, 1250mAh (Delivered With Built In Battery)Charging Port Of Charging Bin: Type C