Output frequency:88-108MHz 100KHz step(200 frequency transmissions) Display mode: LCD display. The display content is the current transmitting frequency. The actual test transmitter is in the open field, and the maximum distance is 2000M FM transmitter Output power:500mM (0.5W) Supply voltage:5V USB-type-C Supply current:500mA Input Signal:Audio Stereo 3.5MM Signal-to-noise ratio:63dB0.05% weight:120g Colour:As Shown Material:plastic+aluminum alloy Package Contents: 1 * FM transmitter 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.