Monster MON129392 AI 1000 FM-CH V2 iPod/iPhone iCarPlay Wireless 1000 FM Transmitter - Deluxe Car Kit - Retail Packaging - Black Monster AutoScan 3D Technology scans the entire FM spectrum three times and locks in the clearest FM frequency available 3 programmable favorite stations for quick tuning to a clear frequency Accurate line-level audio minimizes distortion and maximizes dynamic range for accurate sound Advanced audio circuitry rejects cell phone interference for clear sound 12V lighter adapter charges iPod and iPhone