Description: Note: 1. This transmitter cannot be directly plugged into a microphone. 2. The transmitter needs an external power supply. 3. This is a transmitter and cannot be used to boosts radio signals. Output Frequency: The frequency is adjustable, the working range is 76MHz, 108.0MHz or 0.1MHz step, a total of 320 transmission frequencies, with memory function. Output Power: 10~500mW (0.01~0.5W) @ 88-108.0MHz. Receiving Equipment: An ordinary radio, a radio that can receive FM broadcasts can well receive the signal emitted by this transmitter. Display Mode: LCD display, the display content is the current transmission frequency, see the manual for details, and the production data of the FM transmission antenna is attached. According to the measurement, the maximum transmission distance of the transmitter can reach 2000 meters in the open area. Specification: Supply voltage: 5V USB type C. Power supply current: 500mA. Input signal: audio stereo, 3.5mm interface standard signal to noise ratio: 63dB 0.05%THD. Size Chart: 8cmx4.8cmx1cm/3.15inchx1.89inchx0.39inch Package Includes: 1 Transmitter Module Note: Please allow slightly errors due to manual measurement and different monitors.