Hi-Link 802.11bgn WiFi 2.4G and BLE4.2 IOT Wireless Module HLK-B36 with 2M Flash - AliExpress
IEEE802.11ac 5GHz and IEEE802.11bgn 2.4GHz High Power In-Ceiling access point, Dual Band, AC1200, Wireless Indoor Autonomous Authentication AP, Captive Portal Hotspot User Authentication, Centralized AP Management, Total Solution Provider
What are Wi-Fi standards and how do they differ from each other?