UMEI Ergonomic Mouse High Precision Optical Vertical Mouse Adjustable DPI 800/1200/1600 Wireless mouse （Excluding batteries）

Mouse is designed beautifully. Fits the hand nicely, somehow it’s like the mouse the never knew you needed. 2 improvements are the lights at the bottom/slide. Pointless (to me) to have a racing strip of flashing multicoloured lights on constantly, that to my knowledge have no purpose, or can even see when using the mouse, ( not that it has but surely it’s an extra drain on the battery). Had the mouse for a while now, still on the first set of Duracell batteries and still going strong.

Looks good, and isn't bad, but it is cheap and it feels cheap. It's too light in the hand.

Came with no instructions and although you may think should be pretty simple to use once batteries are put in, it did take a while to synchronise with computer. It has also stopped working now after a couple of weeks, which I am assuming is the batteries already so have just started using my old one again.Would not recommend.

Stopped working after month.I wouldn't recommend this product.