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AJMRTC WS2812B LED and 5V active buzzer module combines 6 WS2812B RGB light chips and a sound buzzer. It is a dedicated indicator board compatible with NAZE32 and Skyline32 flight controllers. The programmable RGB LEDs can display different colors to reflect flight controller status. The built-in active buzzer sends out loud sound warnings, ideal for finding lost drones. It adopts 5V power supply with small footprint, convenient to install on quadcopters and FPV aircraft. Widely used for drone status indication, alarm reminder and flight control accessory modification.