SONOFF DW2-Wi-Fi DOOR/WINDOW Sensor -Functions Introductions

SONOFF door & window sensor DW2-Wi-Fi is the Wi-Fi protocol smart home device, and you can preorder one now on bit.ly/3cqL9s2.
Main features:
◆ Keep linkage with SONOFF smart devices to create various smart scene.
◆ Turn on/off your light with an action.
◆ Notify you when the door/window is opened.
◆ Check the opening and closing status of door/window on APP.
◆ Battery-level display and low-battery reminder.
◆ Allow sharing the sensor with your family to monitor and control of your home.
◆ No gateway required.
◆ Bluetooth low energy pairing.
◆ Support to check history record on APP.
◆ Low-power Wi-Fi transmission for more lasting work time.
◆ Peel and stick installation, quick to use.
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[@gabor0036]

does it work on all wifi network? I mean about a/b/g/n...