What's the difference between 2.4 ghz and 5 ghz?

We recently got a new router, and it's got both 2.4 and 5 ghz capabilities. I don't know too much about routers: just enough to set them up. What's the difference between the two? If it helps, we'll be connecting iPhones, laptops, and TiVos.

Is there a chance that I can get my stolen iPhone back?

So I left my backpack out in the girls gym locker room but my phone was inside. When I came back, it was gone, and I knew it had to be a girl in 3rd hour gym. I talked to the school cop and dean but all they can do is call down girls that are seen on the security camera. So far, the cop only called down one girl but I have no idea how effective the searches are. For all I know, the phone could be in her pants or in her locker and the cop would never know. Immediately in 4th hour, I put my phone on lost mode, and it will make a loud noise until the passcode is in. Then I called AT&T to say that my phone has been stolen.

They said that the phone was turned off at 9:47, and the lady in charge of the locker rooms opened the doors at 9:40, unless my phone was stolen after I went out for gym, which was around 9:10. I have a feeling that it was stolen after 9:10, the person held it onto them during gym, and then finally turned it off at 9:47. 9:47 is too early to be released from gym, unless they snuck back to the locker room after 9:40.

Well the iPhone is pretty much useless, because if the SIM card was taken out and replaced, AT&T will be notified and the second it connects to the internet, is where I can track the phone down. There's literally no way to change the serial number of the phone, or restoring it without dodging internet connection.

It is actually considered a felony because my iPhone is worth $650, and the girl across from me in the locker room also got her phone stolen. Earlier in the year, this girl in my gym class got her phone stolen, but got it back after one day. She is also in the same aisle as me in the locker room. She is going to jail, no questions asked.

The cop literally said "You're never going to get your phone back" and he said it's literally impossible. As he's watching the security cam video the thief is right in front of his eyes! The cop isn't really trying at all, and this does not make our school look good. I also plan on going to the local newspaper and school newspaper for this.

How to upload music onto your itunes from your iphone?

I just got an iMac and I want to put all my music onto itunes.
All of my songs are on iTunes on my PC and i want to transfer all that music onto the iTunes on the mac.
I've tried several ways to transfer the music to the mac such as, syncing, backing up and so on and none of it has worked. I know there's a way to do it but I can't figure it out.

If i get an iphone 4 or 4s will it work okay?

I'm getting an iphone but i don't know what to get:
iphone 5c-i like it but its expensive (around£400)
iphone 4/ 4s-i like it and its a fair price but would it run slow? Do they make them new? If i got one would it last? Basically would it be slow?

How to get contacts off of a broken Iphone 5?

So the screen on my iphone 5 is completely busted and not usable. I got a new iphone 4 and would like to transfer the contacts from my broken 5 to the 4. I don't have an icloud backup that i can use, and when i try to connect the device to itunes it asks me to enter the 4 digit passcode. Which i can't do because the screen is broken. If anyone knows if there's a way to somehow retrieve the contacts that would be greatly appreciated

Redsnow 6.1.3 semi tethered JB? Please explain?

So i have decided to jailbreak my iphone 3gs on 6.1.3.

As i undeerstand RedSn0w doesn't need me to backup my data and all data will be saved, but will my purchased apps (officially on base IOS) be saved?

I'm also afraid of if somethng goes wrong, so if it does, how will i be able to revert to the base original ios? Will i be able to do it at all?

Can I safely upgrade to iOS 7?

I'm running on an iOS 6.0 jailbreak currently, what I'm wondering is, can I safely upgrade to iOS 7 without it messing my phone up? I don't care about losing the jail break or anything, I just want to be sure that I can safely upgrade to iOS 7 from an iOS 6.0 jailbreak. Any help is appreciated.

note: i'm using an iphone 4s

I'm looking at buying the iPhone 5c?

So I'm looking at buying the iPhone 5c but it says I need to pay 49.99 up front and I don't know what that means can anyone help/answer please and thanks in advance.

Can i buy an iphone from USA?

My daughter really wants an iphone 5s for christmas and i was looking on apple.com an the 16GB is $199 and then its like €599 in ireland. I was just wondering if i got my brother who lives in new york to buy it and ship it over to me would it work in ireland if it was unlocked?