MIC/MUSIC/48V three modes, mic is a dynamic microphone mode, Music is an audio mode, 48V is a condenser microphone mode, three-mode switching, to meet the needs. High resolution 24-bit/48kbps. The built-in polymer battery is 1000mAh, which can be replaced or can be powered by a USB data cable. The TYPE-C charging port can be used for about 8-10 hours once fully . Built-in dual antennas, the wireless transmission distance is 30 meters. Active noise reduction chip is used to filter current sounds and provide frequency stability. Equipped with conversion head, compatible with a variety of musical instruments, suitable for wireless audio transmission of electro-acoustic instruments such as bass, guitar, violin, electric piano, keyboard instruments, electric drums and blowpipes. Function: Noise Cancelling, Light-weight, PORTABLE, Condenser Microphone Pattern: Omni-directional, Cardioid Type: Dynamic Microphone Signal To Noise Ratio: 75dB Frequency Response Rate: 20Hz-20KHz Maximum SPL: 110db Sensitivity: -38dB±2Db Colour:black Material:metal+plastic Package Contents: 2 x receiver 2 x transmitter 4 x adapters 2 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.