Leading the industry in hardware and software technologies, Sena Technologies brings you the 50S bluetooth communication device. Featuring the robust Mesh 2.0 intercom system, the 50S allows up to 6 people to speak at the same time. As an industry first, the Sena Technologies 50S allows you to have up to 9 different intercom channels to speak with different groups throughout your ride. Each of the 9 groups can support up to 24 different riders. Slimmed high definition speakers provide 7% more volume than previous models. The 50S includes a wifi adapter that will keep your firmware up to date while you charge your device (now 20% faster).; Mesh 2.0 Bluetooth 5 1.2 Mile/2 kilometer range HD speakers Advanced noise control 9 Channel intercom (supports up to 24 riders each) FM radio Bi-Lingual voice command Works with smart phone digital assistants Hands free profile Reduced charge time Jog dial Wifi enabled