Mouse connection.
1、Plug the mouse receiver into the OTG, then plug the OTG into the type-c port of the tablet.
2, install a suitable battery for the mouse, the red light on the bottom of the mouse can be.
Bluetooth keyboard connection.
1, turn on the switch of the Bluetooth keyboard (blue light is normal, red light is needed to charge the keyboard first).
2, open the Bluetooth function of the tablet, find the Bluetooth keyboard, you can complete the pairing connection.