Expert Mouse® Wireless Trackball Mouse, Easy Finger Control, Precision and Smooth DiamondEye™ Optical Tracking, Ergonomic and Ambidextrous Comfort Design for Windows, PC and Mac (Black)

I enjoy using this trackball every day. It takes up space on my desk, but using this is fun and smooth. You need to get used to the buttons and moving around if you are new to a trackball mouse. There is a learning curve. I don't use all the four buttons yet. You can also assign shortcuts to combination of two buttons. The attached wristrest is also good. My hand doesn't feel tired using this trackball for longer hours.

Expensive but good

Their mac software is useless hence im using steermouse app to program it.. Mouse click feels cheap plastic. I was facing wrist issues with my earlier thumb trackball. So purchase this , even this started to give a bit of pain, but after a while hand got adjusted and pain vanished.

Works like a charm, but the build quality is pathetic. I’m rather surprised by the cheap plastic construction for a very premium-priced pointing device. The plastic enclosure and inserts have sharp edges, and the scroll ring wobbles and makes a grating noise. The only thing substantial is the trackball itself, and how smooth it feels to operate. Logitech trackballs are of much superior overall quality, and they provide comparable performance.

Try claiming warranty they wont support in India. think twice before ordering

Product is very big, Preformance is good . Difficult to carry

Desde que lo uso ya no se me cansa la muñeca, a pesar de que lo utilizo unas seis horas al día. He ganado en productividad porque, gracias a su gran bola, puedo situar el cursor exactamente donde quiero a gran velocidad. Los cuatro pulsadores de que dispone son grandes, sensibles y cómodos para usar. Aunque puede configurarse para que la pulsación conjunta de dos botones adyacentes sea equivalente a otro botón, esto no me resulta práctico porque es difícil hacer la pulsación simultánea.

Great trackball. Easy to connect; just plug the dongle in, and it's good to go. Really good size of trackball allows me to use three fingers to navigate precisely with my non-dominant hand. Comfortable to use from the couch too. The buttons click nicely and the scroll wheel works well. It's definitely a little bit pricey, but definitely worth it to be able to rest my injured dominant hand but still be able to enjoy good precision when using my home PC. The ball comes out easily to clean, so I wouldn't want to take this loose in my bag into the office, but that isn't really a consideration for me since I've switched this one out for the Orbit Fusion, which I'll take to work instead.

Mouse klavye ergonomisi konusunda çok araştırma yaptım ve Kensington orbit fusion modelinin başlangıç olarak en uygun olduğunu ancak bütçeniz el veriyorsa bir kere alıp tam alıp bu modeli tercih etmeniz gerektiğini düşünmekteyim. Ofis işleri ve düzenleme müzik prodüksiyonu ve günlük kullanımda bileğinizde normal mouse kullanmaktan oluşan sert dokuyu geçiriyor ve oyun da oynuyorsanız oyuncu mouselarının verdiği ağrıyı yarıya indirebilirsiniz, bir de ayrık (split) klavye ve düzgün bir postur ve masa duzenlemesi ile expert mouse ergonomiden kaynaklı sorunlarınızı azaltacaktır. Eğimi eğer size uygun gelmiyor ise, ki gelmeyeceğini düşünmüş olsam da geldi, bir ihtimal gelmez ise, altına yükseltecek bir kitap vs. koyup düz hizaya getirebilirsiniz veya yan çevirip 3. parti yazılımlar ile imleç yönünü düzenleyip eğimli ergonomik mouselar gibi kullanabilirsiniz. 3d yazıcı imkanınız var ise/servisinden yararlanabiliyorsanız mouse pozisyonunu daha ergonomik (göreceli) hale getiren eklentiler mevcut. Kesinlikle tavsiye ediyorum.

Comprei com intenção de facilitar e agilizar o uso em edicoes de video que faço. Mas descobri uma outra função que ele tem que é muito útil: pra quem tem sindrome do tunel do carpo no pulso é ideal, voce usa e não movimenta o pulso. Recomendo muito.

Read a lot of reviews before getting this and it's as great. No rsi wrist pain after using it. Love the additional buttons that help me multi-task. Great quality and was easy to get used to.