What's this?

If you need to check email from anywhere but don't want to carry your laptop, you should have this. And it is can also be used to play games, read e-book. You can copy some movie inside to watch when waiting for your friends. After sign the contract to the provider, you can also access internet from anywhere.

Advantace comes with money. It's very expensive to own this. Total price included contract is not less than $1000. 

In fact, I used to have the one. Inside mine, I stored a lot of personal information: email, diary, password, bank account, and so on. Sometime, I used this to record the converstation and re-play again at home. 

I lost it one when I went out with my friend. It's so weird that I'll never mention here. Until now, I still don't understand why it was lost. Just because it could not be lost like that. My friend told me that she saw someone passed across but I didn't see any thing. Do you belive in ghost?