I receive this today in the mail and start use it as soon as I open the box . it require 2 AAA Batteries so if you do not want to be replace the battery every so often I would recommend buy some rechargeable one . now for the main review ... \* the keybaord be very slim and it have a nice look to it . it really do look like a original Apple Keyboard except the material be different . \* if you dont use it for a certain amount of time the keyboard automatically stop work with the device until you press a button on the keyboard . this be very convincent in order to save battery life . \* it have numerous button the control feature such as the brightness of the screen of the device and the volume of the device . this be also very convinient instead of go into you setting to change something like that . \* I be a pretty fast typer and there be no lag what so ever on this keyboard . I have have other keyboard before in which I experience lag , but not in this one . overall this be a really great keyboard that I recommend for all of you that want to type faster than use you touch keyboard . I rate this product 5 star out of 5 star ! no bad thing about it what so ever ! I hope this review help you out !