. I actually had no idea what this was or what it did when it was offered as a review. NOW? Now I can’t image not having it! So what is it? Well; this little guy lets me broadcast an audio signal to two different devices at once. I don’t sleep well at night and I don’t want to disturb The Husband this little guy lets me use my headset without any cords! HOWEVER!!! MY favorite way to use the DoublePlay?? I have a ton of music files on my laptop. My laptop puts out terrible sound. I have a fantastic set of Bluetooth speakers and using the DoublePlay I…