This is an Intelligent Flight Battery designed for DJI Mavic 3 series drones.
Details and Specifications (from the displayed label):
Manufacturer: DJI.
Model: BWX260-5000-15.4.
Capacity: 5000 mAh (LiPo 4S / 77 Wh).
Compatibility: Works with DJI Mavic 3, Mavic 3 Pro, Mavic 3 Classic, and Mavic 3 Enterprise drones.