With this product you can enjoy your city's local FM radio channels through your cardio equipment.  The FM Transmitter can be used with or without a receiver.  

For a Wireless FM system you need to order 1 Transmitter for every TV.  The receivers are an optional purchase and are not required to use the FM Wireless Transmitter.  However, with the Wireless Receiver you can tune in your FM radio walkman to listen to the TV.