Feature: 1. OUTPUT FREQUENCY: Adjustable frequency, working range 76‑108MHz, 1MHz or 0.1MHz step, total 320 transmitter frequencies with memory function. 2. FUNCTION: FM transmitter can be regarded as a small FM radio station, input sound signal, output FM high frequency signal, through the antenna to transmit into the air. People in the surrounding area use the radio to receive it. 3. RECEIVING DEVICE: Ordinary radio, can receive FM radio can be good to receive the signal transmitted by this transmitter. 4. DISPLAY: LCD display, the display content is the current transmission frequency. Measurement of the transmitter in the open field can be up to 2000 meters away. 5. POWER SUPPLY: FM stereo transmitter uses 5V DC power supply, the power supply interface is USB Type C specification. The current consumption is about 500mA. Specification: Item Type: FM Transmitter Material: Aluminum Alloy Output Power: 10‑500mW(0.01‑0.5W) and 88‑108MHz Supply Voltage: 5V USB Type C Supply Current: 500mA Input Signal: Stereo Sound, 3.5mm Connector Standard SNR: 63dB 0.05%THD. Package List: 1 x FM Transmitter1 x Antenna1 x Audio Cable 1 x USB Cable Note: The transmitter cannot be plugged directly into a microphone. If a microphone amplifier is used, the amplified microphone signal can be fed into the transmitter.