Pros: Comes with 2 AAA batteries. The box is nicely designed and makes it feel like a high quality product. It is also very easy to set up. Very light and very tiny.

Cons: BEWARE: Most of the keys are not "normal" in size. I was under the impression that "80 Normal Keys" meant they would be of standard size and spacing of a normal keyboard with the edge keys (shift, tab, caps lock, enter, etc) clipped from the outside. However, they are all quite a bit smaller. The ';' key is half the size of the "normal" ';' key. This is really annoying when you're trying to program. Home row indicator 'bumps' on the 'F' and 'J' keys are not noticeable. I found myself looking down a lot to find where the home row was. Made of cheap feeling plastic. Flexes real easy with minimal force.

Overall Review: If I bought this keyboard with the sole intent to type on my tablet or smartphone, I would be VERY happy with my purchase. 100% improvement over typing on the device's soft keyboard. However, I bought this with the intent to program from the couch on my home PC and it is MUCH smaller than I needed. The letters aren't too bad, but with the lack of a noticeable home row indicator, TINY ';' key, and overall cramped feel, this isn't the keyboard for me. 4 eggs because it is a really nice keyboard, but misleading description caused me to waste my time with an RMA.

Pros: Smaller than I was expecting! A bit bigger than a pack of cigarettes.

Cons: Requires external wall-wart power. Would be even better if it came with USB power cord. Voltage and current requirements are supported by modern USB standards (5V, 600mA), so it should be feasible to power via USB.

Overall Review: Highly recommended at the price I purchased at (just a tenner!!).