[6-Rider DynaMESH Intercom Intercom Range: Up to 1.2Km (3/4 mile) per person. Up to 4 mile group range Battery Life: Up to 18 hours average CLEARLink Mobile App & easy wireless firmware updates Music sharing music/intercom overlay call conferencing control Apple Siri/ Google Voice Universal pairing compatibility Universal mounting to any style helmet PULSE PRO 2.0 ultra premium speakers with dual BOOMLESS MEMS mics]