Logitech M570 Wireless Trackball Mouse – Ergonomic Design with Sculpted Right-Hand Shape, Compatible with Apple Mac / Microsoft, USB Unifying Receiver, Dark Gray

I bought one of these back in 2007, and put in a AA. I had no idea at the time that I had just purchased something that would be with me for a LONG time. To be honest, I've got ADHD and ASD, and the shiny blue, perfectly round heavy ball looked amazing to play with, and super tempting. I told myself I would NOT play with this fancy toy until the mouse broke. This would be a very long exercise in keeping my word to myself and resisting temptation. This mouse was super easy to use, I just plugged in the little dongle, and it was ready to go. Loved how quick it was to plug and play, and while the tracker ball took a little getting used to, considering I had only used the movable kind of mouse before, I found it fairly intuitive and easily adapted to using it. This mouse has customizable buttons on it, that I was able to set things to for playing MMOs, It was quick and dependable for letting me get high scores on flash games. I am an artist, and one day my Wacom tablet broke, and I just.... used the mouse. Because of the smoothness of the tracker ball, I was able to draw with it and get the lines smooth and right where I wanted them. After a year or so, the mouse stopped working! I was confused at first, and then I remembered the battery! I pulled out the battery and swapped out for another AA, and it was right back to how it was before! Darn, no sparkly tempting blue orb for me. This mouse outlasted my computer, another computer, countless laptops, and is now on another desktop.... All easy swaps of the little dongle, and no fuss. This mouse started out being plugged into a computer with XP, then was moved to one with Vista, then Windows 7, then landed on Windows 10. I've used it for art, for regular computer things, for gaming, all sorts of things... All waiting to play with the blue orb of temptation. Every year or so I would need to replace the battery, and each time I was hopeful that the thing had FINALLY worn out... I would pull it apart, use a screwdriver to clear out pet hair, whatever fluff had gotten in the sensors, put it back together, add a fresh battery, and it was always as good as new. I can't tell you how many times it's been dropped, flat out thrown (I have three kids, who are super destructive) I've moved a couple of times, got married, had kids my life is COMPLETELY DIFFERENT than when I bought this thing. At one point a hot glue gun had been set on it before it was cool, and it had MELTED a hole through the plastic... but everything still worked 100% fine. I've pretty much given up on this thing EVER giving out on me. I figure it will outlive me at this point. Aliens in 10,000 years will excavate the earth, find this stupid mouse, with its a shiny blue orb of temptation, plug in the dongle (that magically will fit their systems), and start using the mouse to navigate their space ship. So this fall, when the mouse stops working, I'm like "When was the last time I changed the battery? I don't remember. Guess it's time to do that again (I've said a year, but in truth it depends, and I've gotten anywhere from 10 months to 18 months on a battery). I pull it apart, unscrew the case, clean all the components and sensors, put it back together, put a fresh battery in, and... IT DOESN'T WORK. I'm shocked at first. I assume there's something wrong with the battery. I try a new fresh battery, and it STILL doesn't work. At this point, I check to make sure I didn't mess something up putting it back together because I don't believe it's given out. It's been THIRTEEN YEARS with this thing not having issues... THIRTEEN YEARS!!! Literally teared up and felt bad throwing this away (minus the shiny orb of temptation of course). I pop on Amazon and order a new one, the exact same thing. So far this one is exactly as good and easy to use as the old one, and I figure in 13 years or so I'll probably order a third.

I Love it: I've had this very comfortable, smooth trackball since 2011 as a gift from my family and up until mid-2015 I changed the battery 3x!. I usually use a pencil with an eraser to take out the sphere roller from the bottom hole, so I can clean it (maybe at least 3x in a quarter to remove the dust/dirt build that is seen on the sensors near where the sphere aligns. Also in that mid 2015 time period, the left button clicking mechanism was not responding very well. As noted based I on the time line I gave, I was already out of the three-year warranty and after reading all the great reviews for troubleshooting. Unfortunately, I was not able to resolve this problem and therefore opted to purchase another. Using this device I feel relieves the wrist and hand pain I had when I used the standard mouse. One will be using the thumb constantly with this unit, and it feels so smooth, light to the touch. It stays in one place and for the work that I do that consistency is a must. Do I wish it was bigger? sure but It fits well enough for my hand, I really have no complaints about that. Logitech continues to support this fantastic unit and so I feel it is well supported. Be mindful not to loose the tiny Unifying Receiver as it can take about $10 out of your wallet if it does get lost (I’m talking to those that travel with the trackball since one would have to be disciplined and remember to put it in the secure slot near the battery, as those that leave it at home will likely leave it permanently placed) . Below defines my opinionated star ratings: One (1) star = the product grossly under delivers to the point the it was a waste of time/energy and/or this was the lowest rating allowed. Two (2) stars = the product poorly represented what is was designed for even though it works (i.e. quality, stability, below par when comparing to competition). (and the manufacturer should go back to the drawing board). Three (3) stars = the product worked (in the middle), but never met my standards overall, but the functionality was simply okay. Four (4) stars = the product is good and will satisfy most that use it, regardless if there is that one nagging thing prevented it from being the best Five (5) stars = the product is the all-star/gold medal/excellent category and ether surprised me that it worked so well or it did exactly what was promised by the manufacturer.

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La trackball, la boule bleue, est le seul élément qui fait bouger la souris. J'avais mal compris, je pensais qu'elle était hybride et qu'on pouvait l'utiliser aussi comme une souris classique. Pour autant, j'ai adopté cette souris; au départ, j'avais un peu de mal à être efficace, je mettais globalement du temps pour tout; fermer un onglet, bouger une fenêtre, me positionner sur un champ de saisie... Après quelques jours (5 au moment où j'écris) j'ai eu aujourd'hui au bureau où je travaille avec une souris une sensation inconnue jusqu'alors : J'ai réalisé que les souris classiques étaient inconfortables. J'ai sérieusement envisagé de m'en payer une pour le travail. Je l'envisage d'ailleurs toujours. A ce prix, ça va :) Ce n'est pas rien, mais ça va, la souris est vraiment bonne. Aujourd'hui, je me dis que je pourrais à peu près détourer une forme avec cette souris - je viens d'essayer et effectivement j'arrive à beaucoup plus de précision que ce que les premières minutes d'utilisation m'ont laissé envisager. C'est un détourage crado, je ne pense pas que cette souris soit adaptée à un graphiste par exemple. (bien qu'il doit bien y avoir des fondus qui arrivent à réaliser des chef-d'oeuvre avec). Là où je vois la différence c'est le renversement total dans la vitesse de déplacement. Une fois qu'on a progressé et qu'on est un peu plus net dans les mouvements, on envoie la souris où on veut en un coup de boule (si je puis dire). Au départ je trouvais pénible de ne pouvoir sélectionner rapidement un onglet dans mon navigateur web, aujourd'hui je trouve beaucoup plus rapide et confortable de naviguer avec la trackball.

Estoy bastante satisfecho con mi compra y se la recomendaría a cualquier persona que busque una alternativa ergonómica al mouse convencional. Decidí probar este mouse debido a que estaba desarrollando cierto dolor en la muñeca debido al prolongado uso del mouse en el trabajo y al cabo de unos pocos días el dolor y las molestas habían desaparecido. La mano descansa muy cómodamente sobre el mouse, lo cual habla bien sobre su diseño ergonómico. La calidad de los botones hasta ahorita me ha parecido buena, al igual que la rueda central. La esfera es bastante suave y me parece que su tamaño es muy adecuado al tamaño del resto del dispositivo. Creo que tengo manos tamaño promedio y creo que este mouse también resultaría muy cómodo para alguien con manos muy grandes. Sin embargo, pudiera ser difícil para alguien con manos muy pequeñas el tener un manejo ágil del mouse. Después de alrededor de 6 meses de uso no he tenido que reemplazar la batería y nunca he llegado a tener ningún problema de conectividad con el receptor incluído. Sin embargo, si pudiera mejorar algo de este producto sería el agregarle la conectividad Bluetooth sin necesidad del receptor (hay un modelo más reciente de este mouse que ya cuenta con esa característica=.

Ajusta perfeito na mão

This track mechanism I now wouldnt be without. Excellent product. Saves me from pain in shoulder I experiencesd after 15+ years of constant computer work with a 'regular' mouse. Easy, feels natural to use after intial 2 days of getting used to it. I will always precer the track mouse now. Very sturdy product. Droped a few times, carted around on public transport & planes yet it pops back together and keeps on going no problem. Batty life with use it excellent. A tip, its easy to use on public transport because you dont drag it around for cursor movement. Just place it on something firm within reach and simply roll your thumb to drive the cursor.