Chip: BH1417F. 1 x 12V Digital Radio Station 0.1W PLL Stereo FM Dual Transmitter BH1417F Kit. Transmit power：5V 100M. Applications: forward wireless music players, TV audio. Stereo Separation: 40dB. the finished product in last two images is not what you received, only for show how it will be after soldered.
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