Monster iCarPlay Wireless 250 FM Transmitter w/ AutoScan for iPod and iPhone. Advanced digital technology for maximum signal strength and improved sound quality. Smart Digital Charger technology charges your iPod and iPhone while you drive. Multi-pass Auto-Scan 3D finds the clearest FM station at the touch of a button. FM transmitter screen displays station information. Simple intuitive 3-button control with 3 programmable station presets. Also functions as standalone USB CLA charger for other devices. Ultra low profile power adapter minimizes dashboard clutter.