The CERULEAN TX + RX from iSkin provides you with the ability to listen to your iPod or computer wirelessly from up to 33' away by using Bluetooth 2.0 technology. The TX transmitter connects to your iPod's dock connector or to your computer's USB port and transmits audio to the RX receiver or to a pair of CERULEAN F1 earphones (sold separately).
The TX and the RX are designed to seek each other out and pair up automatically, so there are no settings for you to fiddle with. The RX receiver can dock with any speaker system designed for iPod to receive audio from the TX transmitter. This allows you to carry your iPod with you and use it as a "remote" for the audio that's coming out of your speaker setup. The RX receiver can also be connected to any sound system that has an auxiliary input. Both the TX and RX draw their power from the iPod and iPod speakers they're connected to, so no extra batteries for power plugs are needed.