SlimBlade

I have used these track ball mouses for years and these are extremely sensitive to your movements. Especially in combination with increasing/changing the sensitivity in your settings, if you like responsiveness and already have some good hand eye coordination then this could be really great for you. For people who want something more straight forward and don't have the patience then I don't recommend this. This tracker ball is actually amazing for gaming and the in office use (after almost using these for ten plus years) because the ergonomic design prevents hand cramping, and you never need a dumb mouse pad, or run in the trouble of moving the mouse off the mouse pad because you never have to move your arm around for it! I love how both left and right hand users can use this mouse equally, the design makes for incredibly easy movements that are not interrupted by any weird grooves or even the placement of your other fingers. I noticed many ppl didn't like this flexibility and the placement of the ball, as it is not fixed into any one positon and can easily be removed and picked up. But this is something that actually makes cleaning the inside of the mouse (removing dust from the sensors and keeping the mouse on a smooth roll) incredibly easy and actually maintains the sensitivity of the mouse, since there is less friction between other parts of the mouse that slow you down. Also if you are constantly pushing the tracker ball with too much pressure or too close to the edges in a lifting motion, of course it will pop out, it happens, and definitely not often, it takes practice to use and if you don't find it comfortable and don't hate mousepads and the problems with conventional mouses enough to learn a whole new kind of hand eye coordination then maybe it's not for you. These have sped up my work and reactivity so much, so even though this unfortunately doesn't have a scroll option, this is not really gonna be a deal breaker, especially when it's super easy to scroll down with the key board. That is the one thing I wish they would fix about this product if it wouldn't mess with the design of it!!

The first thing that impressed me was the thick cardboard packaging. Super protective. Opened it up, was surprised that the ball was so loose. I had been used to ones that held the ball in, even if dropped. Plugged it in to my 2004 Lenovo computer, heard that sound, you know what I mean, acknowledging it. Put my hand on it, rolled the ball around, and nothing happened on the screen. No matter what I did it just didn't work at all. I was disappointed. In the evening I took it to the bedroom, plugged it in my 2014 Acer laptop on the off chance it might work, and whaddaya know?! It worked perfectly! I'm very, very happy with it! It will live with the laptop and my other trackball will stay with the computer. Other than the looseness of the ball, which I can live with, I love this trackball!

My old one had earned retirement - paddle contacts wore out. The new one wants to lean forward just a millimeter; a bit awkward, and the ball feels a bit looser than the old model. That said, it works just fine. I adjusted my grip just a bit so my palm keeps the back end down, and my fingers touch the ball slightly higher than before. Just minor adjustments on a fine product at a reasonable price.

In 20 years, I have only purchased two. You can set it up for a left/right handed person I use this for my carpal tunnel syndrome. Extremely. ergonomically. Has a great appearance and connects to the computer easily. The orbit track mouse cause user-friendly

Having used the Logitech trackball for years, but when it was time to replace Logitech's prices went too high. So, recently tried the Kensington with the Ring and found it to be too wide for most hands here...to the point of being uncomfortable and clumsy. Decided to take a chance on this one without the "ring" and what a difference! The width is just right and the ball moves ever so smoothly and quickly and stops easy too! It is being used on a Linux O/S and absolutely no problems. Highly recommend this mouse. For those who need to know the size width: The narrowest part where your hand lies across the top (to click either left or right side of mouse) is approx. 2.25 inches. Compared to the same brand with "the ring" which is approx. 3 full inches. Also the highest height of the ball on the "ring" model is 2.50 inches and on THIS model it is a half inch lower. SO you can see by these measurements this model is much more suitable for smaller hands, or hurting/stiff hands. Additionally, other reviewers stated that the trackball is loose and falls out...I too noticed that my trackball was not seated all the way in. I took it out and examined it and saw that there is a clear piece of plastic that was stuck on the ball and had rolled to the under side of the ball. It was hard to see because it was clear and had black writing on it and the ball is a very dark gray. I think this piece of plastic had some warning on it -- maybe to remove before use...but it was difficult to see. Now that that is removed the only way I can remove the ball from its place is to turn the mouse over and it gently falls out so that you clean/dust it off. It never just falls out or pops out...unless something is in the way. Its a great little mouse...thinking about getting another one!

3 month Update - From 4 star to 1 star At this point, I pretty much have to give this a solid "thumbs down". The mouse "snaps" or clicks every time you move your finger from front to back. Repeatable, every time. As I mentioned earlier, either the unit's plastic collar for the ball has expanded, or maybe there's a spring behind the rear tab that failed. This mouse allows just WAY too much excessive movement, to the point where every "down" effort causes the mouse to snap or pop. It's not single movement, either. It's a backwards and then upward movement, every, single, time. It' annoying, though it doesn't appear to impact the actual function, e.g. the movement of the mouse on the screen appears faithful. Add to that, every once in a while, the mouse freezes, and loses touch with it's software driver. I have to unplug the USB and replug it. It's an "OK" mouse, and could have been great. Someone in engineering design just cheaped out with materials, to save 50 cents, I suppose. I won't buy another. I'll try something else. Who knows, maybe with the chance in the tariff environment, someone will start making quality computer mice in the USA again. (Just use the Logitech trackball as the design, clone it, build it with original METAL switches, and you'll sell a million of 'em.) --------------- Original review It took a bit of time to adapt from the old Logitech Marble Mouse (MM) I've been using for 20 or 30 years. For one, it's shorter and broader. My large hand fingers don't naturally drop to the L/R keys the way they did on the MM. I have to reach back and wider to find them, but that's mostly a retraining issue. Technically, this is a VERY good mouse. Extremely smooth rolling ball, but at a cost. Where as the MM has multiple metal points suspending the ball in a relative snug fit, this trackball just kind of sits loosely in a cradle. And, that's where this mouse, after a couple of month's use, is probably a "fail". I can't tell for certain, I'd probably have to have a new one to evaluate side-by-side, but the cradle appears to have a plastic tab in the back, which limits the forward to backwards movement of the ball. It's not doing that anymore. There is now SIGNFICANT movement of the ball, front to back. The impact is that whenever you're finger is moving from slightly top center to rear, the ball "snaps" backward or forwards. It doesn't remain snugly in place. It's still mostly an annoyance, but it does impact control of the mouse movement to some extent. Again, I'm not sure if this is "as originally delivered", or if it's become damaged with use. Would I buy this again? Well, it's the best Logitech mouse replacement I've seen. Maybe. Not certain. I need a couple of more replacement mouses, so I may give this a second try. What's really a shame, is that some "big political boss" in the new Logitech ownership "somewhere in Asia" decided from an ego perspective, to ignore the wide and deep market for the MM, and discontinued manufacturing them. In fact, since they bought out Logitech some decades ago, their newly designed version was a cheap piece of crap, anyhow. The original had metal contact points in the switches for the mouse keys. Their new ones, plastic, which wore out in about 6 months. They saved 5 cents on a 20 cent part, and destroyed the original reliability. (Had the original mouses for 10 years before they failed.) So, on the plus side Kensington (ACCO Brands in San Mateo) appears to be making products in response to consumer demand. I hope they build and improve on this mouse design.

LOVE the mouse! Since Logitech went monetary greedy, and in order to get a mouse I can use as a left hander with ease would cost me close to $200 when it used to be 15... yeah...decided to try the Kensington. It's a GREAT little mouse...and the closest I could get to my old Logitech center rollerball. UNFORTUNATELY?.... the Kensington mouse has extreme separation anxiety and throws a toddler tantrum if I leave the room. I can't even go pee without coming back and it's thrown itself into the computerized version of a corner to pout. I literally have to UNPLUG this thing and re-plug it in for my computer to 'read' it. This is ANNOYING beyond all else because at least a toddler can be bribed (cookies are awesome) in the worst case scenario...the Kensington? Not so much.... I have spoken with Kensington tech and they cant figure it out either. So if that's not an issue then Get this little mouse. I have small hands and when it's not having a separation anxiety fit, it works wonders~!

I've been using this style trackball mouse for over 10 years, I recommend it. Convenient. It saves you time and effort.

Fits the hand well. Easy to set up. I have been using a well known marble mouse for years, but it appears to be obsolete now. Any on the secondary market are horrendously overpriced, so finding this as a replacement is great.

Den Trackball habe ich nicht für mich bestellt, obwohl ich selbst auch Trackball - Fan bin. Ich bevorzugeaber einen kabellosen Trackball für den Couchbetrieb. Diesen preisgünstigen Trackball hatte ich gewählt, um einem Menschen mit spastischer Behinderung zu helfen. Die Person hatte das Problem, dass sich beim Linksklick die Maus immer verschob, so dass die Maus mit der anderen Hand gegen das Verschieben blockiert werden musste. Dies löste dann manchmal wiederum einen unerwünschten Rechtsklick aus. Das Positionieren des Zeigers und das Klicken wurde so zu einem Geduldsspiel. Mit dem Trackball klappt dies nun einwandfrei. Das Nichtvorhandsein von zusätzlichen Scroll- oder Browsertasten und die grossflächigen, seitlich angebrachten Tastenfelder ermöglichen einen problemlosen Links -, Rechtsklick. Die Person war von dem Trackball so begeistert, dass sie noch einen weiteren Trackball für einen Freund bestellt hat, der auch eine Körperbehinderung mit Spastik hat. Der Trackball ist einfach, aber formschön und scheint gut verarbeitet zu sein. Das Preisleistungsverhältnis stimmt bei diesem Produkt.

Le trackball Kensington Orbit Optical est un très bon trackball d'entrée de gamme, il peut se révéler un excellent choix pour qui veut découvrir à moindre coût le monde des trackballs, et le plaisir d'utiliser pareil périphérique. Les principales critiques que l'on entend au sujet des trackballs sont leur manque d'ergonomie, dépendamment que la boule soit centrale (pour une utilisation ambidextre), ou déportée (généralement dédiés aux droitiers) et l'absence de roulette. L'ergonomie est un facteur à prendre bien entendu en considération, mais celle-ci par définition est liée à la morphologie et aux attentes parfois très spécifiques de chacun, certains trouveront toujours ce trackball trop grand, d'autres trop petit, certains trouveront la boule trop petite, voire mal positionnée. Personnellement je trouve la taille de ce trackball plutôt modeste, il ne conviendra pas aux (très) grandes mains. Pour être objectif, je l'ai comparé au Kensington Slimblade, ainsi qu'au Logitech Trackman Marble... il est sensiblement plus petit que ces derniers. L'ergonomie étant quelque chose de très subjectif, ce sera à chacun de juger, mais après plusieurs heures d'utilisation intensive, je dois admettre que le profil choisi par Kensington n'est pas désagréable, il ne provoque aucune sensation désagréable ni de gêne particulière. Mais où est donc la roulette ? Je ne compte plus les remarques à ce sujet, certains n'hésitant pas à établir un lien direct entre l'absence de roulette et la possibilité d'effectuer un défilement (scrolling). Si il est vrai que la roulette est un confort indéniable pour effectuer un défilement, il ne faut pas perdre de vue qu'un trackball, par définition, permet d'effectuer nativement cette action, et ce au contraire d'une souris classique (sans roulette). En effet, avec un trackball, le défilement (scrolling) peut s'opérer très simplement en pointant la barre de défilement avec le clic gauche et, tout en maintenant le clic gauche enfoncé, vous utilisez la boule comme une énorme roulette... c'est silencieux, précis, bref... un vrai plaisir ! Vous pouvez même vous écarter de la barre de défilement tout en effectuant un "scrolling", attention toutefois de ne pas trop s'en écarter car au-delà de quelques centimètres la fonction de défilement s'interrompt. Il est important de préciser que Kensington propose, tout comme Logitech, un logiciel de contrôle pour ses périphériques, permettant, entre autres, de (re)programmer les boutons voire pour ce qui nous occupe, affecter une fonction particulière au clic simultané (clic gauche + clic droit). Il est donc très aisé d'affecter la fonction "clic du milieu" au clic simultané et de bénéficier dès lors d'un "scrolling" logiciel. Pour les personnes intéressées, vous devez télécharger le logiciel TrackballWorks 1.1.18 for Windows (32-bit,64-bit) sur le site du fabricant. Comme indiqué dans les instructions d'installation, le processus requiert les droits d'administrateur, pour ce faire, sous Windows 7, clic droit sur l'exécutable que vous aurez téléchargé et "Run as Administrator" (Exécuter en tant qu'Administrateur). Une fois installé, le logiciel demandera un redémarrage du système et proposera une interface en français. A toutes fins utiles j'ai posté une capture d'écran sur cette page. En résumé, je trouve que ce trackball mérite ses 5 étoiles car à mon sens : - il présente un excellent rapport qualité / prix - il permet, outre un "scrolling" natif, un "scrolling" logiciel grâce à TrackballWorks - il présente un "design" toujours d'actualité - il est compatible PS/2 - USB (adaptateur USB vers PS/2 fourni) - il dispose d'une longueur de câble appréciable (160 cm)

Love this mouse a lot better than others on the market, it a quick reaction mouse gamers could easily use this mouse

Uso este dispositivo desde hace unos 6 años en régimen profesional en mi trabajo. Es el mejor track ball que he manejado y he comprado este como repuesto por si se deja de fabricar `porque Kesingstone está sacando nuevos modelos con mas funciones pero menos robustos. El producto lo he comprado reacondicionado con defectos en embalaje pero debo decir que el defecto ha sido el embalaje ligeramente abollado. Si trabajas con track balls de media precisión, no lo dudes es un producto inigrualable en calidad/precio.