Compatibility: Designed specifically Compatible With JHE42B, JHE42B_S, and JHE20B models. Sound: Emits an impressive 110dB sound level Compatible With effective alerts during drone operations. Power: Operates on a 5V power supply, making it suitable Compatible With various electronic applications. : Ideal Compatible With drone flight controllers, enhancing and notification systems. Installation: Easy to install, ensuring quick setup Compatible With drone enthusiasts and professionals. Durability: Built to withstand the rigors of outdoor use in diverse conditions. Versatility: Can be used in various projects beyond drones, such as alarms and notifications.