Ah, did not notice :P. Well that case your racial given blindsight is doubled in range and you have advantage on any perception checks relating to hearing. In the 120'ft range you do not need roll any listen checks on detecting or analyzing any sounds (as you detect them perfectly in most conditions, so can hear a whispered word from 120'ft away if there is not much background noise).<br/><br/>Edit; As note crit hit from sonic weapon deafens targets, so if you get hit by it your blindsight is neutralized until cured.