Output frequency: adjustable frequency, working range 76~108MHz, 1MHz or 0.1MHz step, total 320 transmitting frequency, with memory function. Output power: 10~500mW (0.01~0.5W)@88-108MHz. Receiving equipment: ordinary radio, a radio that can receive FM broadcasts can receive this transmitter well signal emitted. Display mode: LCD display, the displayed content is the current transmitting frequency, please refer to the manual for details, and an FM transmitting antenna is included. According to line production data, it is actually measured that this transmitter can reach a maximum distance of 2000 meters in an open area. Supply voltage: 5V USBType-C Supply current: 500mA Input signal: Audio stereo, 3.5mm interface standard Signal-to-noise ratio: 63dB 0.05% Enjoy high quality FM broadcasting with this FM transmitter. Perfect for radio enthusiasts and hobbyists who want to create their own FM radio stations. For event, parties, and community gatherings where you want to broadcast your own music or announcements. Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Colour:Black Material:plastic Package Contents: 1x 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.