My Bluetooth range is about 5 feet

[Rakehellion]

I have an old MacBook that I've torn apart and reassembled numerous times. It could be that it's just an old version of Bluetooth, or maybe I forgot to reattach an antenna the right way, but I bought one of these and the sound is occasionally choppy except at very close range. Is there some way I can improve the reliability of the connection? External antenna maybe?