Optional: WiFi 1 Gang, WiFi 2 Gang, Zigbee 1 Gang, Zigbee 2 Gang. Protokoll: WiFi/Zigbee IEEE 802.11b/g/n. Vielen Dank! If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.
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