1,In-car RF transmitter 2,Carrier frequency:863.5,864.5MHz /914-915MHz 3, Over 50 meters range 4, Small order accepted In ... , 915MHzEffective Range: over 50 metersFrequency Response: 30~20000HzSignal-to-noise Ratio: >75dBTHD: <1%Power Requirement: DC 12VPicture: High frequency RF transmitter with dual ...