This Dual Xiaomi Silence Mouse is compatible with Bluetooth and works also by using the USB receiver.
It can be used either ways or connect 2 devices.
To use the Bluetooth, just click on the switch button on top of it to change the light to blue. Click again to change it to light green if you want to use the USB receiver.
Bluetooth name: Mi Silence Mouse
Working Distance: <8m
Silence: Silence on click (no click sound)
Compatibility: Bluetooth and 2.4GHz USB
Can connect 2 computers
Note: no battery added