WL SW01 10 WiFi Smart Switch
Manufactured by Blue50 as WL-SW01_10 and also sold as TISHRIC.
Sonoff Basic in a different form factor with the same features.
It contains an ESP8285 chip on a vertical breakout board with all the needed GPIOs broken out and labeled. There are also a couple pads on the board to solder VCC and G.
Use template {"NAME":"WL-SW01_10","GPIO":[17,149,0,148,0,0,0,0,21,56,0,0,0],"FLAG":0,"BASE":1}
If your Tasmota version doesn't support templates select module Sonoff Basic (1)
.