This is an example of Mime magic.

Obscure (Hearing) 10 [42] 
    Stealthy [+100%] 
    Extended [+80%] 
        Sonar 
        Subsonic Hearing 
        Ultrasonic Hearing 
        Vibration Sense 
    Terminal Condition (Caster Removing Hands From Ears) [-20%] 
    Magical [-10%] 
    Spell Components [-40%] 
        Must cover ears with hands 
        Must wear a beret 
        Must wear white make-up on face 
Level 2 [52] 
    Add Area Effect (4 yard radius) [+50%] 
        Builds on built-in 2 yard radius 
Level 3-5 [62/72/82] 
    Increase Area Effect by 1 step [+50%]