During a Marathon and two half-Marathons the Bluetooth headset disconnected from my Spark Music device. Annoyingly, there was no way to reconnect it without interrupting the race's tracking, so I had to continue running without music. If the Bluetooth connection was rock-stable, then the lack of a reconnection feature wouldn't be an important problem. As things stand, I consider this to be a serious and irritating bug. Other forum members have complained about this problem as well, more than a year ago. When do you plan to fix this problem by offering a Bluetooth reconnection option?