The PINENG PN-969 is a 20,000mAh lithium polymer power bank. With dual USB output, this portable allows you to charge 2 devices at the same time. It is compatible with any phone, tablet and USB charging device, including game consoles such as the Nintendo Switch and PSP. With an LED screen on the front, this portable charger displays both its own battery percentage as well as the in/out charging status of connected devices. 

The PN-969 is fitted with an intelligent voltage recognition chip that automatically detects the voltage of devices for safety purposes. It also has a battery protection feature built into it to prevent over charging, over discharging and short circuits. This power bank has a dimension of 163 x 76 x 21mm, and only weighs 420g each!