When I tried to use Wi-Fi at Starbucks, there were two types of Wi-Fi, 2.4 and 5. Which one should I use?
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pu2. It means 2.4GHz or 5GHz. If you use 2.4G, the speed is a little low, but the Wi-Fi has the advantage of passing through obstacles well, and if you use 5, you can't receive well if you have a wall, but if you don't have a wall, the speed is fast
2017-12-21
pu3. It'll be hard to feel the big difference if you're using your cell phone to use the Internet
2017-12-21
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