Etymotic Research’s ety8 Bluetooth Wireless Earphones are “the world’s first in-ear high fidelity, noise-isolating earphones”.
By using the optional 8•Mate adapter for your iPod, you can send music wirelessly to your earphones, and enjoy the crystal clear sound that Etymotic Research is known for. (They don’t call themselves the “World Leader of In-Ear Technology for nothing!)
The full kit includes a leather case, various eartips, a USB charging cable, and a filter changing tool and filters. Plus, if you’re using these on a device that already has Bluetooth built in, you can skip the iPod adapter and save a few bucks as well.