Produced by Lingan, branded under various names (BlitzWolf BW-SHP9). PCB is marked “Lingan swb2-1 REV:v1.1”.
To disassemble remove the rubber feet, unscrew 6 screws (two are hidden behind the sticker), remove backplate and unscrew 6 more screws holding the PCB to the enclosure. Run on ESP8266 based LM1 module. All GPIO’s are broken out and labelled in the corner.