MUNBYN MT002 Rugged Phone for Field Operations[20000mAh Battery] MUNBYN MT002 rugged cell phone is equipped with a large capacity battery of 20000mAh. This allows it to last for 10 days under normal use and the standby time is 1008 hours. [33W Fast Charging] Equipped with 33W fast charging function, it provides long term power guarantee for outdoor workers and adventure enthusiasts. You can also use the OTG function to charge other devices such as GPS devices, flashlights, field lights, and other