During combat, if you are to use any subclass feature, you have blinded condition. While blinded, you have advantage on sound and smell based perception checks.

Blind-Catch

At 3rd level, as a reaction, you canb catch a ranged attack, if the projectile is solid and it is small enough to be held. While holding this projectile enemies have advantage on attack rolls made against you.

Heightened Sense

At 7th level, you can double your Wisdom modifier for perception checks based on smell, touch, sound, or taste.