Seamlessly transmit all your favorite songs with Naxa's Wireless Audio Adapter with Bluetooth for iPod and iPhone Dock Connectors (NAB-4000). Ever wish you could stream music through your 30-pin dock speaker system? Now you can. Just connect the wireless audio adapter to your 30-pin dock for iPod and iPhone and pair your modern smartphone, tablet, or other Bluetooth-enabled devices. The NAB-4000 is made to be both compact and durable, and then shaped into a sleek, modern design. As added usage conveniences, it also comes with automatic detection of 5V power supplies, as well as a blue LED indicator light for pairing.