I'm looking for something to receive the ANT+ signals from my components (mainly, my power meter) for my iPhone. I know that Garmin and Wahoo both have dongles that do this, but the Wahoo key only has reception from about 10 ft. away (unobstructed). I'd like to find something with a little more range (say, 20 ft. or so). My goal is to have my power displayed for my coach during motopace sessions, while she's in front of me on the scooter. Any ideas?