Check the listing for details. BA1404 FM Stereo Radio Transmitter Module BP Machine Type Transmitting kits. Condition: New. Listed at 8.60 USD. BA1404 FM Stereo Radio Transmitter Module BP Machine Type Transmitting kits Description:The launch board is a kit, you need to solder and debug by yourself!Audio transmission cable and microphone cable are not provided.The classic BA1404 FM stereo transmitter board kit helps to learn and master the working principle of pilot-based FM stereo transmitter. It is easy to assemble, low voltage, high stereo separation, and good sound quality. The board uses FM stereo transmitter integrated BA1404 and 9018 RF amplifier circuit. The frequency is stable. The working voltage is 3V, and the advanced pilot frequency modulation stereo transmission technology is adopted, which can convert the stereo audio signals of audio equipment such as DVD players, TV sets, CD players, and radio-audio equipment into FM stereo waves, which can realize the wireless high protection of stereo audio signals. True transmission. In addition to transmitting stereo signals, the board can also be used as a wireless microphone. When a stereo audio signal is inserted, it can be used as an FM stereo transmitter. When a lavalier microphone is inserted, the transmitter becomes an FM wireless microphone with the microphone volume adjustable. Audio transmission line or lavalier microphone line doubles as a transmitting antenna. The working frequency is continuously adjustable within 85-115MHz. Buyers can adjust the frequency above or below this frequency band by themselves, and the frequency band bandwidth is about 20MHz. Its reference launch distance is about 10 to 100 meters in an open environment. It is suitable for school tutoring students' radio teaching or radio enthusiasts assembling. Package list: 1PCS * BA1404 FM Stereo Radio Transmitter Module BP Machine Type Transmitting kits(No English Instruction) PaymentDelivery detailsTerms of salesReturnContact usPaymentWe accept payment by PayPal only. Payment must be received within 7 days after auctions ended.Delivery detailsItems will be shipped within 1-2 business days when we received payment. Shipping to USA takes about 8-15 days in normal condition,other countries takes about 15-35 days. Please verify your eBay primary shipping address. We are not responsible for any wrong or undeliverable addresses.Terms of salesAll items will be checked before packing Your feedback and 5 star ratings are much appreciated. If you are unhappy with your purchase, please contact us on negative / neutral feedback or low star ratings.ReturnIf you receive an item is damaged or defective, we will refund you or replace it with identical one. All damaged or defective items may be exchanged within 30 days.Contact usWe take full responsibility if you receive wrong item or damaged item or item not as describled. If you're not satisfied for any reason, please feel free to contact us. Just send us an eBay message.