Features: Double modes, FC-control and TX-control. Support flight control such as for NAZE32/F3/F4/F7. Adopt four WS2812B LED lamp beads with integrated loud buzzer. Cooperate with flight control, can display various color and flashing status, suitable for tail light of classical crossing aircraft. CF-BF flight control mode, support for CC3D, Naze32, SPRachingF3, F4, F7 and other flight control with CleanFlight and BetaFlight firmware. Package Includes: 1Pc LED Tail Light with Buzzer Specifications: Item Name: LED Tail Light with Buzzer Material: ABS Length: about 36mm/1.42inch Applicable Models: Suitable for F3 F4 F7 CC3D NAZE32 Flight Control FPV-Drones Working-voltage: DC4.5~5.2V note: Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different monitor resolution.