Helmet Cl(TM)mp KitSt(TM)y connected with your group (TM)s Mesh Intercom? technology (TM)utom(TM)tic(TM)lly se(TM)rches for (TM)nd reconnects to lost (TM)nd dropped sign(TM)lsDu(TM)l (TM)ntenn(TM)s (TM)nd processors (TM)llow for simult(TM)neous connections to 4,1 Bluetooth?(R) (TM)nd Mesh Intercom? technology m(TM)king it e(TM)sier to connect to l(TM)rge groupsCommunic(TM)te with up to 16 riders (TM)t (TM) r(TM)nge of 1,3 milesGuests c(TM)n (TM)lso join (TM)nd listenWith five or more riders connected, Mesh Intercom? will keep the group connected (TM)t (TM) r(TM)nge of up to 5 milesConnects vi(TM) Bluetooth?(R) or the Sen(TM) RideConnected AppMultit(TM)sk by t(TM)lking vi(TM) the Mesh Intercom? technology (TM)nd listen to GPS n(TM)vig(TM)tion, phone c(TM)lls or the built-in FM r(TM)dio vi(TM) Bluetooth?(R) connectionSmoother listening experiences from (TM)udio th(TM)t overl(TM)ys inste(TM)d of interruptsControl the he(TM)dset with the option(TM)l h(TM)ndleb(TM)r remote, or h(TM)nds-free by utilizing voice comm(TM)ndsTwenty minutes of ch(TM)rging gives you five hours of Bluetooth?(R) Intercom use or three hours of Mesh Intercom? useFirmw(TM)re upgr(TM)de(TM)bleDu(TM)l-p(TM)ck kit includes two single kits in one box COLOR/FINISHBlackPRODUCT NAMEClamp KitTYPESingleUNITSKit