... lock,motorcycle lock set,siren lock the lock adopts two steps to operate,alarm or without alarm. alarm lock,motorcycle lock set,siren lock desprition:1. The lock ... the key core as to make the lock pole lock the second step ,when you hear the ... alarm situation,after 15 seconds , when the lock or vehicle is viberated, it will give an ... please keep this usage direction.. alarm lock,motor lock,siren lock