Don't leave home without it.
The Adapt is the coolest little piece of technology I currently own. Simply plug in any regular 3.5 mm headphone and using Bluetooth connect the Adapt to your iPhone or computer.
BOOM - Instant Bluetooth Headphones.
You can skip songs, control volume, and pause/play without having to take your phone of your pack/pocket. There is also a the built-in microphone that allows you to make and receive hands-free calls from anywhere, any time. The battery lasts for 5 to 6 hours of playtime and 150 hours of standby time.