I went ahead and got the wahoo heart rate strap and wahoo blue speed and cadence sensor. I'm going to get the RFLKT, not the RFLKT+. Since I have wahoo hr strap and speed and cadence sensor, I'm assuming I do not need the ANT+ that comes with the RFLKT+. Lastly, I'm hoping I can connect my bluetooth headphones while everything else is connected for use with the RFLKT. No one at Apple has a clue about these devices My LBS also didn't seem to know much about the RFLKT