Description:Item Name:Finder YR50B_SSize: 18*17*15MMWeight: 4gVolume: Up to 100dBFeatures:- Finder YR50B_Sget power from FC.- Dual LED lights flash.- Much Louder than Standard Buzzer To easily find the crashed quad in long distance,YR50B_S is designed to install a very loud beeper that the dB is over 100.-How to Disarm the BuzzerDisarm with button: Disconnect main battery, hold disarm button on YR50B_S for 1-5 seconds then release.- Compatible with Both FPV quadcopter and RC AirplaneYR50B_S is programmed to be compatible with any flight controllers to support FPV quad, and receivers for RC airplane.No extra setting required, it will automatically recognize the device to connect.Package Includes:1x Finder YR50B_S