Shimano SLX M670 is both 2/3 speed selectable, 2/3×10 speed compatible front shifter. There is something strange about this particular model: I bought this from AliExpress few years ago. When I looked at the Shimano site, this model is listed with gear indicator. Models from that era have removable gear indicators. Not sure, but this can be a knock-off. It also does not have DynaSysy logo – replacement caps all seem to have them.
It feels sturdy, you can select the 2 or 3 speed compatibility at the bottom of the shifter, which can clearly be seen in the photos.
Shimano SLX M670 series released in 2013.