... All in 1 car FM transmitter for Iphone ,Ipod can connect with MP3,USB,SD card ..etc. High fidelity Error recognition ,correct Features :1.) ... Design based on iPhone, iPod ,2.)can directly control iphone or iPod internal corresponding ... 9MHz~107.9MHzSeparation>=35dBOperation current20+/-3mAVoltage6~25VWeight45G All in 1 Car FM transmitter for Iphone