This exclusive universal 4-in-1 FM Transmitter for iPod/iPhone holds and charges while it transmit music from your iPod to the car stereo. Listen to your iPod through your car stereo via FM radio! Acts as a full holster for your iPod This Transmitter charges your iPod while plugged into your car. iPods in Skins or Cases will fit fine Transmitting Range: very strong signal within 30ft / 10M (Optimal reception is within 10ft / 3M). Soft protective padding . Provides a secure and stable connection for your iPod with custom-designed swivel-cradle. Locks securely to your iPod using padded arms and dock connector.