Advent AMWL 13

cheap and does the job

Its very compact. Easily removeable battery. It has a power saving option which extend the battery life. It has a 6 meter range as well. Value for money

Does exactly what I wanted

Functional without wires necessary

Can be slow to connect initially depending on your laptop/ computer performance

Haven't got any favourite bits. It's a useful mouse and comfortable to use.

User friendly, feels comfortable in my hand

Nothing

Already had one of those and lasted ages and also did not go through a battery for a long time

It uses only one battery. This makes it cheaper than some others that require two. Easy to set up.

its a mouse!

Easy to install.

Eventually the battery will run out. Hardly a complaint. More a sort of "C'est la vie".