Dogcom is a relatively young brand of high-performance batteries for FPV drones, which aims to offer the best batteries on the market. Dogcom 1380mAh 6S is a Lipo battery with XT60 connector suitable for high-performance 5" racing or freestyle drones. This battery is also named after MinChan Kim (MCK), one of the best pilots in the world.
Before using it, read Safety Guidelines for Lipo Batteries.