Logitech’s MX620 is a cordless laser mouse, which means you can use it without cable even for gaming, as it has a higher precision compared to optical mice.
Based on the laser technology, it replaces the red LED light used by optical models, with an infrared laser diode which is invisible. This light reflects from the surface beneath to the mouse’s sensor, and the mouse scans all the incoming light sequences, which are then translated into cursor movements on the monitor. The scanned image resolution is higher than in optical mice, and laser mice have a tracking power 20 times higher.

With the cordless functionality things get a little bit more complicated. Like many of you I asked myself what’s the difference between a wireless mouse and a cordless mouse, so i hurried to find some clues to get the big picture and make you understand too.



It seems that computer mice that don’t have cables connected to the PC unit or laptop, use either the infrared transmission or the Bluetooth technology to work from distance. Both methods are categorized as short-range wireless communications. What differentiates them are the following characteristics: the infrared technology works at a shorter range between the communicating devices, and the signal breaks as one of them is moved from the direct line, or if an object interferes in this range, just like with any TV remote; on the other hand, Bluetooth is based on a radio frequency capable to pass through walls and doesn’t have directional requirements, allowing for handsfree operation like with cell phones, and works at 2.4 GHz frequency.



Some people tend to include the cordless mice in the infrared devices category which is not entirely correct. Cordless mice can be considered wireless devices, as they are cable-free, using a special wireless adapter, while it depends on the specifications to categorize them. There are some cheap entry-level mice that use infrared.

If we take a look at MX 620 from Logitech, in the specification list we find out about the 2.4 GHz micro-receiver that is the adapter you need to connect to your computer ‘s USB port to detect the mouse, which means it is not based on the infrared technology and you won’t have problems using it.
In addition to this technology, it features a fast scroll wheel that allows the user to scroll long documents and find things in the fastest time, with high laser precision.
You can use it in all types of operations including gaming, for up to 1 year, until the LED indicator tells you to replace the batteries.



Available at around $60, the cordless laser mouse model is compatible with Windows XP, Windows Vista and Mac operating systems, and is powered by 2 AA batteries, coming with the installation software and a 5-year warranty.

Even if they are designed to maintain a high tracking resolution on more types of surfaces than optical mice, laser mice still are a bit sensitive to mirrors and clear glass, but you have other option as well – the wireless optical mice – and it might help to choose what meets your requirements best, if you read some optical mice reviews.

The popular Hello Kitty brand in Japan, created by Sanrio, can be found on different products including electronics. Computer mice from Hello Kitty are great for children and for people that just want to have a fun mouse to work with.



This cool optical mouse has 3D effect with color-changing lights spread through the glass giving a disco sensation during night.



The blue mouse face here is not a mouse but Hello Kitty undercover, measuring 4 1/2 x 4 x 1 1/2 inches at 1.50 pounds, and available at $38.



Here is another optical mouse working with USB connectivity, sporting left and right buttons as well as a scroll wheel. Hello Kitty’s cheeks turn red when you turn the mouse On.



One of the latest additions to the cool pink mouse line is the optical mouse with pas set, available at $19.95 in nice pink shades with the white kitty on top. It’s features USB, PS/2 converter and supports Microsoft Windows operating system up to Vista and Mac.



At a price of $110, comes the heart-shaped Swarovski-decorated Hello Kitty mouse with black background.

One of the most stylish and ergonomic computer mice on the market comes from Microsoft, a company known not only for the most world’s popular operating system, but also for it’s high-end computer peripherals provided. Microsoft Wireless Laser Mouse 7000 is a rechargeable model designed for the use with your right hand only, and works wirelessly from up to 30-foot distance, based on the 2.4 GHz technology, via a Mini USB receiver. It has a full charging time of up to 7 hours to operate continuously for up to 3 weeks at a single charge.
It is a high-definition laser mouse working based on Microsoft’s proprietary technology, featuring a status indicator that flashes when batteries are low. When this happens you have to place it on the charging pad in the horizontal position.

Laser mice use an invisible laser beam that reflects from the surface reaching the sensor, which sends the images to the digital signal processor. The processor detects image patterns changes and establishes the distance the mouse has moved since the last change. These coordinates are then sent to the computer to be translated into the cursor movement on the monitor. It provides higher image resolution on more types of surfaces, than optical mice, even on tricky polished or wood-grain surfaces, glazed ceramic tile, untextured plastic, metal surfaces, photo paper, laminate countertops, and opaque glass, while enabling 20 times more surface tracking power compared to the optical sensor.



Featuring the Windows Flip 3D Key, the Microsoft Wireless Laser Mouse 7000 allows you to access this mode, specific to Windows Vista operating system, which shows all the open windows in a cool three-dimensional view. In addition, you can use the Magnifier feature to enlarge and edit page fragments, or the 4-way directional button based on the Tilt Wheel Technology, to scroll pages horizontally and vertically and see all the details. Microsoft High Definition Technology promises increased precision, high responsiveness and smoother tracking, while specifications highlight 6,000 frames per second tracking system, 1,000 points per inch resolution, and a tracking speed of up to 15 inches per second.

System requirements include the Windows Vista, Windows XP, or Mac operating system, 100MB hard drive space to install the software, and a free USB port.



The mouse measures 4.77 x 3.23 x 1.66 inches at a weight of 3.7 ounces, powers from one AAA 1000 mAh Ni-Mh battery type, and is available at a retail price of $70 with a 3-year warranty.

It combines two devices in one: a remote optimized for PowerPoint presentations, and a computer laser mouse.
Penta Sport remote control mouse doesn’t benefit from an attractive marketing campaign but it looks cool enough for you to have the chance to take a look at it.

Available at around $80, it uses the 2.4GHz wireless technology at up to 60 foot range and provides the following features: slide advance buttons, omni-directional mini joystick, joystick clicker, mouse buttons, an ergonomic design, compact construction, rubber finish, laser pointer, laser button, USB, plug&play, zipper carrying case accessory, low battery consumption, multiple channel selection, power from 3 AAA batteries, LED light indicator, and an On/Off switch.
The Penta Sport remote control mouse mouse is developed by Penper, a company that designs and manufactures unique computer products marketed online.
The mouse’ specifications include a switch life of 1,000,000 cycles, compatibility with all Windows operating system versions and Mac.

This is the Penta Sport laser mouse presentation: