Shipping Free--New Product PLL 0.5W FM Transmitter+Antenna+Power supply The product crust is made of high-quality aluminum, which also is the heating panel of power amplifier 2SC2053, with LCD to display frequency. The motherboard is applied with chip BH1415F, which is the new-generation integrated NC FM stereo radio chip by ROHM, built-in PLL frequency, audio pre-emphasis, limiter and low pass filter circuit. Make sound more sweet. New Product PLL 0.5W FM Transmitter+Antenna+Power supply Silver color