High-Performance Drone Buzzer: A micro-type FPV drone buzzer that ensures you can always find your device with its loud 110DB buzzer. Built-in Battery: Equipped with an 80mAh battery, this micro-type buzzer can work independently for more than 30 hours, giving you enough time to find your drone. Versatile Voltage Compatibility: Designed to work in a voltage range of 4.5-8.5V, it is suitable for a variety of drone models. Easy to Install: This buzzer can be easily installed on a variety of drone models, making it a versatile accessory for any drone enthusiast who wants to improve the safety and recoverability of their drones. Reliable and : Designed to withstand the rigors of daily use, it is both reliable and to long-lasting durability in all flight conditions. Maximum volume: 110DB Working time: more than 30 hours Charging time: 1.5 hours Battery: 80mAh lithium battery Input voltage: 4.5-8.5V The product appearance and printed words depending on the batch, but this does not affect use. Colour:As Shown Material:PCB Package Contents: 1 * Buzzer Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.