eBay item title: DC 3-12V 110DB Discontinuous Beep Alarm Electronic Buzzer Sounder
I lost my first (Hubsan junk) drone in a storm, then I almost lost this Syma the other day so I decided to add a beeper. When the battery dies (and the drone lands itself) it will still beep for a while but when it COMPLETELY dies you are out of luck. So if you lose it let off the throttle!
