A4Tech Skid Free Big Wheel Optical Mouse OP-20 - mouse

Advantages: Reliable, small size, energy saving (A4 Tech MOP-35)
Disadvantages: not works on all surfaces

...The first look on the title of the product actually confused me. A4 TECH is a manufacturer of computer peripherals from Taiwan and in fact independent to Logitech. I had my A4 TECH mini mouse (model MOP-35PU) when I bought my laptop. It has been proved that this delicate mouse is the best mate of laptop if you don't like to have a big suitcase but still want to use external mouse instead of touchpad or trackball. This make the operation including web surfing much easier. The mouse use a LED device to locate and detect the movement. It is dubious that somebodies claim it as 'laser' mouse, but you should keep in mind that don't stare at the optical device directly since the light is so strong and can be harmful to your eyes!!! The manufacturer claim it can work on almost all surface although I found it actually doesn't work perfectly... Read review

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Advantages: Never loses connection, comfortable to use
Disadvantages: Wire from board sometimes gets in the way

...What is it? The A4Tech batteryFREE Wireless Optical Mouse is a wireless mouse that runs on a board. This board interacts with a computer via its wire. The board is optical and when the mouse is placed on it, they connect optically, allowing the mouse to work. Looks: The mouse and board look average, and are nothing spectacular. The board is silvery greay, with a black base and thick edge at the top. The logo 'A4TECH' is on the head of the board, the mouse and the bottom corner of the board. The wire is thin and black. The mouse itself is mainly black, with a transparent silver band running in a U shape around its edge. On top of the mouse there is a line of this same trasnparent silver plastic, where the gap between your index and middle finger lies. In the centre of this strip there is a white opaque plastic scroll button. When... Read review

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Advantages: Very accurate, brilliant optical on almost all surfaces, SO comfortable to use, 5 buttons, 2 wheels
Disadvantages: Not many! Only one wheel has a button though

...I've had the A4Tech WOP-35PU mouse for a long time, I remember getting it due to wishing to have an optical mouse but not spend too much, and it cost me under £10, so I was very surprised at how well it lasted, and most of all, how happy I was with the mouse. In my opinion this is the best mouse I've ever used. I used to find Microsoft Intellimice the most comfortable, but this fits in my hand perfectly and is very well designed, with easy access to use all 5 buttons, so it is very well designed. Visually, the mouse looks very professional, with a slight futuristic effect, amazingly without looking too tacky, so I'd definitely say it looks great. The buttons themselves are reasonably light in touch to use, but not too light to accidently knock (the only slight problem being a very slight tendancy to knock the left side button... Read review

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