The 20S-01 has great sound quality and a number of mounting options so it should work well with virtually any helmet. It also has a wide, 2km range which is a step-up over the old SMH10.
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Pro Wide range
You'll be able to easily communicate with others while on a ride. The range is quite wide at around 2km as long as line of sight is maintained.
Pro Intuitive controls
You'll be able to easily control the 20S-01's functions. It features a jog-dial which you can twist or press to do functions like adjust the volume and activate or deactivate the intercom.
Pro Ambient Mode is a convenient feature
You'll be able to easily converse even with your helmet on. This headset has Ambient Mode which you can activate at the press of a button. Once on, external microphones pick-up ambient sound, making them easier to hear.
Pro Very good voice quality
Your voice will sound clear from other riders' headsets. Not only does the 20S-01 produce clear and full voice, but it also eliminates wind noise quite effectively.
While you do get improved performance, lower end models are cheaper and offer pretty good performance.