The Handlebar Remote, Wristband Remote, RC3 3-Button remote and RC4 4-Button remote are all compatible with the Bluetooth 4.1 models, such as the 10C, 10R, 10S, 10U and 20S.
Tip: Be sure to check the firmware on your headset is current before attempting to pair with the remote.
A pairing guide for each compatible model can be found via these links below
Handlebar Remote (SKU: SC-HR-01)
Wristband Remote (SKU: SC-WR-01)
RC3 3-Button Remote (SKU: SC-3B-01)
RC4 4-Button Remote (SKU: tba)