Happymodel DT-B90 90dBi Finder Buzzer Alarm 4.5-9V Input Built-in Battery with LED Light for RC Drone default

Description

As a stand-alone buzzer, it can be used regardless of the form of drones or the battery for main power supply of drones. Integrated LiPo battery charging circuit. The battery can be recharged at any time by connecting to a powered on drone It is small, light, and solidly designed with heat shrink tube structure to protect the product.