2.4G Wireless Microphone Set Intelligent Noise Reduction Omnidirectional Condenser Clip On Microphone for Vlog Video Recording Interviews Specifications: Color: Black Working Voltage: 3.0V-4.4V                             Working Frequency: 2.3G-2.48G                             Transmission Power:﹤+4dBm                             Sample Rate: 48K/16bit                             Delay: 26mS                             S/N Ratio: ≥ 62dB                             Distortion Rate: ﹤0.17 ％                             Microphone Type: Omnidirectional condenser microphone                          Sensitivity: -38dB±2dB(1dB=1V/Pa@1KHz                             Frequency: 100Hz-18KHz                             Battery Capacity: 300mAh  Charging Current: 150mA                              Working Current: 28mA(Single Chip）                             Standby Current: ﹤22uA                             Operating Temperature: -25℃～80℃                             Transmitter Size: 4.8 * 4.3 * 1.2cm/ 1.8 * 1.6 * 0.47inch Transmitter Weight: 24g/ 0.84oz Receiver Size: 4.8 * 4.3 * 1.2cm/ 1.8 * 1.6 * 0.47inch Receiver Weight: 24g/ 0.84oz