ear·shot 
/ˈiɚˌʃɑ:t/ noun
/ˈiɚˌʃɑ:t/ noun [noncount] : the distance within which someone's voice can be heard
▪ They were within earshot of each other. ▪ We waited until he was out of earshot [=until he could no longer hear us] before speaking again.
▪ They were within earshot of each other. ▪ We waited until he was out of earshot [=until he could no longer hear us] before speaking again.
