This soldering FM radio transmitter kit is well made, after you finished soldering and installation, use the microphone or the audio cable, you can really broadcast to a FM radio, which is very cool！
EASY AND FUN TO SOLDER
Two IC chips were both soldered well on the board, no worry about the SMD soldering part. Clear marks and solder pads will also allow you finish it easily.
No matter it’ll used to be an education kit for teaching electronics or soldering it with your lovely kids, you will have awesome time, they will definitely be proud of themselves when done, especially when you have fun with it! 😁
SIMPLE TO USE WITH A FM RADIO
It can be used with our radio (ASIN: B07YH8V2KS). Long / short press the two buttons of the transmitter or adjust the radio to keep their frequencies the same. (Try to avoid the dense and strong frequency band where the local radio station is located.) The radio has no sound when matched, plug the microphone or audio cable into the audio interface, you can hear your voice or audio equipment from the radio.

For experiencing it better, please try to use it in an open area as much as possible because of the indoor electromagnetic wave environment is complicated.
Some Parameters You May Care
1) Operating frequency: 87-108MHz
2) Microphone length: 100cm / 39.37inch
3) Audio Cable length: 50cm / 19.68inch
4)Antenna length: 31.5cm / 12.4inch; 5-section retractable type; 360°rotated
5) Receiving equipment: audio radio/mobile phone with radio function
6) Transmission distance: 0-100m
We also put colorful paper instructions in the package for you, any needs or questions, please feel free to let us know
Have fun with the FM radio transmitter kit! 😁
Another Great Soldering Project Kit - This kit is a solder electronic DIY kit, suitable for electronics enthusiast and beginners to experience with DIY teaching soldering electronic accessories. It not only to improve the soldering skills, but also you will enjoy the cool project kit!
Use with a FM Radio - This is a FM radio transmitter kit, after soldering, through simple frequency settings, it will be used with a FM radio or devices that receive FM radio functions.
Have Fun with Your Family and Friend - One person broadcasts and one person listens, let your voice be emitted from the radio. Or each of you two takes the radio and the transmitter, then the function of the walkie-talkie can be realized.
Can be Placed Standing, Free Hands - Through the reasonable combination of the board and the battery box, it can stand on the table or other flat place. You also can clip the lavalier microphone on the collar to free your hands to broadcast, which is very convenient.
2 AA batteries are needed. Finished size: 8.3 x 6.3 x 3.3 cm / 3.3 x 2.5 x 1.3 inch. Please feel free to contact us if you have any needs or questions.