FM Wireless Stereo Transmitter $6.50 This stereo transmitter will let you connect any audio device to your FM radio without any cables. Simply plug the transmitter into a headphone jack of TV, MP3 player, laptop computer or any other audio source and tune your radio to receive the sound! The transmitter has a little dial to vary the frequency between 89-92MHz. It is equipped with a standard stereo 3.5mm plug. The range of operation is 20-30 feet, depending on the quality of your receiver and the number of obstacles on the way (walls, buildings). Dimensions: 3"x2"x0.75". Requires 1 AA battery. Blister packaging. Shipping cost is $3.50