Microphones TAB
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 | Specification Frequency range 2 4GWorking current of transmitter 11 12mACharging interface TYPE CWorking current of receiver 20 21MABattery capacity 60MAHBattery full voltage 4 1 4 25VFrequency response 20 20KHZWorking temperature 10 to 45 degreesCharging input voltage 4 8V 5 4VWorking time about 4 hoursPower on current 10 11MATransmission delay 30MSSensitivity microphone 42DBAntenna ceramic antennaMicrophone noise reduction microphoneTransmissi |  |