It comes as H type tail light with 8 x WS2812B LEDs & loud buzzer.
It provides dual control modes, can be controlled by flight controller firmware (Cleanflight, Betaflight etc) or transmitter.
Matek Dual Mode Tail Light WS2812B & Loud Buzzer
Dual modes: FC control & TX control TX mode: LED 7 colors (white, red, green, blue, yellow, magenta, cyan) LED 5 status (constant light, slow blink, fast blink, voilent blink) Buzzer: lost plane finder FC mode: Support Naze32, SPRacing F3 etc. with CleanFlight or Betaflight firmware. Input voltage range: 4.5-5.2V DC Power of TX mode (5V in): 1W/ 0.2A-2W/0.4A Weight: 5g