The Sena 20S 01D is the ultimate Bluetooth communication system for motorcycle riders who demand top-tier audio quality, seamless connectivity, and unmatched intercom range. Building on the legendary 20S, the 20S EVO features a sleek fixed shark fin antenna for improved intercom performance and distance (up to 2 km / 1.2 miles).
I like the Sena 20s because they pair up easily. I did not like the Sena Freeware I bought for my Goldwing. Still has pairing problems. Had to return it because it was useless.