What is the difference between Grandstream GVC3220 (US) and GVC3220 (World)?

What is the difference between Grandstream GVC3220 (US) and GVC3220 (World)?

Description

This article describes the difference between Grandstream GVC3220 (US) and GVC3220 (World).

The Wi-Fi channels are different between GVC3220 (US) and GVC3220 (World) models. Some Wi-Fi channels in the US conflict with the Radar channels, and they cannot be used in the US region.

GVC3220 (US) can only use the Wi-Fi channels below:
2.4G: 1 2 3 4 5 6 7 8 9 10 11

5G: 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 149 153 157 161 165