Advanced Connectivity: Seamlessly integrates Bluetooth audio streaming with traditional FM transmission, allowing you to broadcast audio from your Bluetooth-enabled devices directly to any FM radio receiver Versatile Voltage Compatibility: Operates efficiently on a DC voltage range of 4.5V to 5.0V, making it suitable for electronic projects and consumer applications Broad Frequency Range: Covers a wide FM frequency spectrum from 87 to 108MHz, ensuring clear and stable transmission across different environments and setups Compact Design: Engineered with a small form factor for easy integration into existing systems without requiring significant space Due to different batches, there may be differences in product appearance and printed text, which not affect use Color: Blue Material: PCB Package Contents: 1 x Bluetooth Audio to FM Transmitter Module 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.