Dexim DFA003B Dock FM Transmitter for iPhone 3Gs/3G /iPod. Connectivity technology: Wireless, Host interface: Wireless. Data transfer rate (max): 0 Mbit/s. Frequency band: 0.0881 - 0.1079 GHz, Maximum operating distance: 5 m. Input voltage: 5 V, Input current: 0.5 A. Power requirements: 12/24 VDC, USB cable: USB