If all of this doesn't sound amazing enough, there is more! One of the things I am obsessed with is the online function of the tag reader. You can plug it into your computer and it will tell you everything about your child's progress. Anything and everything you want to know. How long it takes them to get through a page, which math troubles are stumping them, what they are really excelling at, how long they use it at a time. Tons and tons. It helps me know Cal a little better.
The only thing I don't like about the tag is the battery situation. We have two types of batteries on our house. The first kind are the cheapys you buy at the dollar store. When you put those in the tag and turn it on the first time it almost immediately tells me it is time to change the batteries. They must not have a lot of juice in them. The second kind we have are rechargeable and I HIGHLY recommend these for your reader. Otherwise, you'll go through a ton of batteries. Ugh.
So there's my recommendation. If you are looking for a Christmas gift for a little one, I would highly recommend it. They even have a tag jr. which is for smaller people. We got one for our niece...shhhhh. Hope you enjoy your Tag Reader. If you have one, let me know how you like it!
*by the way, I was not paid, coerced or threatened into giving a recommendation :) Just thought you'd want to know*