2km 0.5W FM transmitter 500mW digital display Stereo FM Transmitter 76-108M Audio signal USB TYPE-C FOR DSP Radio broadcast Campus Radio Station English listening Output frequency: frequency adjustable, working range 76~108MHz, 1MHz or 0.1MHz in steps, a total of 320 transmission frequencies, with memory function. Output power: 10-500mW (0.01-0.5W) @ 88-108MHz. Receiving device: A regular radio that can receive FM broadcasts can effectively receive the signals emitted by this transmitter. Display method: LCD display, displaying the current transmission frequency. Please refer to the manual for details. FM transmission antenna production data is included, and it has been tested that this transmitter can reach a distance of 2000 meters in open areas. Power supply voltage: 5V USB-type-C (power supply and USB type-C power cord need to be provided by oneself) Power supply current: 500mA Input signal: audio stereo, 3.5mm interface standard signal-to-noise ratio: 63dB 0.05% THD Please note: 1. This is a transmitter, IT not a radio 2. This transmitter cannot be directly inserted into the microphone. 3. The transmitter does not have a battery inside and requires external power supply. 4. This is a transmitter and cannot be used to enhance radio signals. If you want to enhance the signal, please buy an outdoor antenna or antenna amplifier. Weight: 120g Size: 8.5x5x2cm Colour:Black Material:plastic Package Contents: 1 * Transmitter (Antenna AND POWER not included) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.