Echolocation

The user focuses for one minute before making a clicking sound (snapping fingers, clicking tongue, clapping etc.) and for 1 hour, the user has 60ft of blindsight.  The user maintains blindsight for 10 seconds after each click and may continue clicking to maintain blindsight for the duration or stop and restart at any point as long as they maintain concentration.  The world is viewed in grayscale while the effects of the spell are active.  The spell "Silence" will nullify any attempts to use Echolocation in its radius and the user cannot cast the spell if they are deafened. The spell can be heard by any creature with echolocation giving disadvantage on stealth checks against them.