● Antenna type: Ceramic antenna ● Channel system: Two transmitters and one receiver ● Transfer distance: obstacle free distance of over 15 meters ● Working hours: 4 hours ● Charging time: approximately 90 minutes ● Sensitivity (microphone): -38dB ● Charging interface: TYPE-C ● Working temperature: -10~45 degrees ● Frequency response range: 20-20KHZ


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