Description 5W Stereo Digital FM Transmitter FM Radio Transmitter Mini FM Radio Station Specification Bandwidth 20MHzWorking frequency 87 109MHz 70 90M 100 120M can provide Modulation FMMaximum deviation 75KHzWorking voltage DC9V DC13 8VWorking current 1ATransmission power 5W 7WOutput impedance 50 Step frequency 0 1MHzPre emphasis delay 50usResolution 40dBDistortion 0 1 Input level 13dBVSize 102 x 65 x 26mmOperation 1 To connect the antenna and power supply 2 Short press UP DOWN key the transmitter will by 0 1MHz step increase or decrease the working frequency 3 Press UP DOWN key the transmitter will enter a rapid jump until the key is released 4 Audio input signals are connected with the AUDIO interface the input string to isolate the front magnetic interference Note The default frequency is 87 109M and can provide other frequency 70 120MHZ 20M bandwidth open transmission can be more than 5 kilometers Package includeds 1 x Transmitter1 x Adapter Also come with an adapter according to your country 1 x Wire Details pictures