K9Wireless Lavalier Microphone Audio Recording Mic Type-C Charging Portable Noise Canceling Microphone for iPhone PC TabSpecification 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 microphoneTransmission distance 20 meters in a straight line about 7 meters in obstacle distancePower off current 2 3uAGross weight 70gApplicable mobile phones for Android Typc C interface for Apple Features 1 Professional Recording Quality Delivering … $15.49Banggood.comDelivery: to Redlands ReportBuy!
