Measy AU-680 Wireless Audio Transmitter Transmission Receiver Stereo Music Sender Kit

Specifications Operating voltage 3 6 5 5V DCWorking current Max 250mA transmitter Max 100mA receiver Module actual operating frequency range 749 770MHzModulation method Pi 4DQPSKFrequency selection method carrying channel one way loop selectionprovide automatic tracking searchFrequency stability 100KHz 100KHzModule actual working channel 20CH 20CHModule channel spacing 1MHz 1MHzTransceiver distance 100 meters in the open space the test uses a transmission power of 100mv Transmit power 1 100mv default is 100mv Receive sensitivity 95dBInput level Max 1 0VpkInput impedance 10k ohmInput interface Stereo audio inputOrdinary microphone inputMonitor booster inputStereo output level 1 30mW RL 32 ohmsStereo output level 2 50mW RL 32 ohmsOutput impedance 1k OhmOutput input gain ratio 1 0 1Frequency response range 20 20000HzDelay time 2 5msSampling rate 48KHz 32bitSignal to noise ratio 96dbDistortion 0 3 1KHzDynamic range 90dbLeft and right channel isolation 85dbProduct size 100 x 100 x 27mm 3 94 x 3 94 x 1 06 inchesPacking size 210 x 117 x 30mm 8 27 x 4 61 x 1 18 inchesGross weight 480gPackage Included 1 x Receiver1 x Transmitter1 x USB Cable1 x User Manual