As a swift action, you can fan out these replacement ears to triple their surface area, giving you blindsense (sound).
                Type Reactive;
                
Level 6;                
Price 4450 SN;                
Reactive Echolocators are sense dependent to a range of 30ft.
                
               
                                          
                Type Active;
                
Level 9;                
Price 13700 SN;                
Active and enhanced echolocators occupy both the ears and throat system, also allowing you to spend a move action to produce, receive, and process a series of subsonic chirps to gain the benefits of blindsight (sound) until the beginning of your next turn. The blindsight from active echolocators has a range of 30 feet.
                
               
                                          
                Type Enhanced;
                
Level 13;                
Price 50900;                
Enhanced echolocators have a range of 60 feet.