And one thing is that the site looks not made properly there are some pages that are lacking of contents, like when you want to go to some other pages then you will redirect to order page and with this features lol
https://i.imgur.com/2YH9O0x.png
In their specifications, the battery is at 600mA, considering how often you would need to keep the device powered on for trading (maybe 10 trades a day?) it probably would last pretty long until depletion. I also noticed there is usb port on the bottom side of the device, so it would support dual interface (USB or Bluetooth) and used for charging.