---
product_id: 22784003
title: "Expert Wireless Trackball Mouse (K72359WW) Black, 3.5\" x 6.1\" x 8\""
brand: "kensington"
price: "913 Lei"
currency: RON
in_stock: true
reviews_count: 3
url: https://www.desertcart.ro/products/22784003-expert-wireless-trackball-mouse-k72359ww-black-3-5-x-6
store_origin: RO
region: Romania
---

# 55mm precision trackball auto-sleep power saver 4 customizable buttons Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8"

**Brand:** kensington
**Price:** 913 Lei
**Availability:** ✅ In Stock

## Summary

> 🖱️ Elevate your workflow with precision and comfort—because your desk deserves the best.

## Quick Answers

- **What is this?** Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8" by kensington
- **How much does it cost?** 913 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/22784003-expert-wireless-trackball-mouse-k72359ww-black-3-5-x-6)

## Best For

- kensington enthusiasts

## Why This Product

- Trusted kensington brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ergonomic Comfort:** Detachable wrist rest designed to reduce strain during marathon work sessions
- • **Effortless Scrolling:** Patented scroll ring lets you breeze through long documents and web pages
- • **Seamless Connectivity:** Dual wireless modes—Bluetooth LE & 2.4GHz USB dongle for versatile device pairing
- • **Tailored Productivity:** Customize buttons, scroll, and cursor speed with KensingtonKonnect software
- • **Pinpoint Precision Control:** Large 55mm Diamond Eye optical trackball for flawless cursor accuracy

## Overview

The Expert Wireless Trackball Mouse (K72359WW) combines a large 55mm Diamond Eye optical trackball with patented scroll ring technology for precise and effortless navigation. Its ergonomic, detachable wrist rest supports extended use, while dual wireless connectivity options (Bluetooth LE and 2.4GHz USB dongle) ensure compatibility across Windows, macOS, and Chrome OS. Customizable buttons and adjustable cursor speeds via KensingtonKonnect software empower professionals to tailor their experience. With power-saving auto-sleep and a robust 3-year warranty, this mouse is engineered for productivity and comfort.

## Description

Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8"

## Features

- Large 55mm ball design and Diamond Eye optical tracking for precise cursor control; Patented scroll ring lets you scan up and down pages with ease
- Detachable, ergonomic wrist rest supports hand and wrist for improved comfort; Ambidextrous design
- Customizable 4-button design, scroll speed and cursor speed via *KensingtonKonnect software. *Windows ARM-based computers are currently not supported
- Connects wirelessly via built-in Bluetooth LE or with the USB dongle using 2.4Ghz wireless; Auto-sleep helps conserve battery life; Bluetooth connectivity works best for PC Windows 8.1 or later and Mac OS X 10.8 or later; USB dongle connectivity is recommended for Windows 7 or later
- Power saving mode puts mouse to sleep when not in use; power settings can be updated in the KensingtonWorks software
- Compatible with Windows, macOS (10.14 and later), and Chrome (OS 44 and later); 3 year coverage and lifetime technical support

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Wireless Type | 2.4 GHz Radio Frequency, 802.11a/b/g/n |
| Brand | Kensington |
| Series | Expert Mouse |
| Item model number | K72359WW |
| Hardware Platform | PC,MAC |
| Operating System | Chrome, Mac, Windows |
| Item Weight | 1.35 pounds |
| Product Dimensions | 6.02 x 4.92 x 2.76 inches |
| Item Dimensions  LxWxH | 6.02 x 4.92 x 2.76 inches |
| Color | Black |
| Number of Processors | 1 |
| Computer Memory Type | DDR3 SDRAM |
| Power Source | Battery Powered |
| Batteries | 1 A batteries required. (included) |
| Manufacturer | Kensington |
| ASIN | B01936N73I |
| Is Discontinued By Manufacturer | No |
| Date First Available | January 12, 2016 |

## Product Details

- **Brand:** Kensington
- **Color:** Black
- **Connectivity Technology:** USB
- **Special Feature:** Ergonomic Design, Touch Scroll, Wireless
- **Movement Detection Technology:** Optical

## Images

![Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8" - Image 1](https://m.media-amazon.com/images/I/81GsK-CUT1L.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Questions & Answers

**Q: Does it work on Linux?**
A: Yes. I’ve used this trackball with 5 different releases of Linux Mint going back some years. All 4 buttons will work, but you will have to monkey with your desktop environment to map them to what you want.

**Q: does left click result in double click after use?**
A: I have a Kensington "Mouse Port/Serial" version (RS232 "COM" Serial or PS/2) Expert Mouse trackball (from the mid 90's) that I bought new all those years ago when I built my Intel 486 DX2-66 PC (66Mhz = 0.066Ghz) and have been using for hours and hours every day on each PC upgrade I've built ever since (currently a i7-4790K !), including audio editing, gaming, web browsing, and more...  I still have the original box which says "OS2 Warp" and "Works with Windows 95 and Windows 3.1" and "5 Year Warranty" on it (yes, it's really THAT old!) and all these years later I'm now using it on a 4.0Ghz quad-core PC running Windows 10 Pro x64 with no problems whatsoever! Even after pounding hard on the bottom left button for gaming year after year it just took the abuse and kept on working fine. After about 15 years of that abuse along with lots of hard pressure holding of that same bottom left button for selecting audio segments, manually scrolling through documents and web pages, and so on, it began occasionally either releasing or double-clicking during selecting of audio segments as if I'd released the button when I had not, BUT after sitting overnight it always goes back to normal and doesn't act up like that unless I start doing lots of heavy thumb action with bottom left button holding or pounding again. If I remember to go a little easier on the pressing or don't do a ton of left button holds it can go for weeks before the bottom left button gets quirky again. Also note that it's literally 20 years old, it's been doing that off and on for about a decade now, and it has never been anywhere near as intermittent and downright useless as the Logitech buttons become in less than a year with comparable use. We have Logitech trackballs at work and after the third replacement batch in 2 years they've learned to live with the flaky buttons because the boss feels that $25-$40 for a mouse is absurd and he definitely won't spend the money to buy Kensington trackballs... I'm actually about to replace my 20 year old Kensington Expert Mouse with the new model, only because I need a KVM, my back-lit keyboard is "USB only" (PS/2 Support), USB didn't exist when I bought my now 20 year old Serial/PS-2 Expert Mouse, and although I have successfully gotten its' signals to convert to USB through a (RS-232 COM Port) "Serial to USB interface" and also got a PS/2 to USB keyboard/mouse signal converter dongle to work with it I haven't been able to successfully get either of those converted USB signals to pass through a USB KVM...I started to look for other ways to adapt PS/2 or Serial to USB that claimed to be KVM compatible but I couldn't find a workable solution that would pass through a USB KVM for less than the cost of a brand new Kensington USB Expert Mouse so sadly I think my 20 year old Expert Mouse is about to be retired and an new USB one will finally be taking its' place soon. I hope the quality of today's Kensington Expert Mouse is as good as they were 20 years ago. Time will tell... Also note that my 20 year old Expert Mouse that still works very well uses 2 giant wide metal rollers for the X and Y axis motion detection (that the ball rests on) with photo-led sensor wheels inside to generate the X/Y mouse movement signals, basically over-sized industrial grade versions of the small plastic roller rods the old rubber ball mice used to use (which had to be cleaned when the cursor started getting stuck and I need to clean these maybe once every 3-4 years at the most), unlike the much newer mouse technology of the past decade that uses optical detectors to actually look at the ball and see it move. As a comparison, Logitech once offered a big track ball mouse for a while that looked almost identical to the Kensington Expert Mouse for less than half the price and when I lifted the ball out to check out the rollers it was immediately obvious why the price was so much less.  They were tiny rollers just like you'd find inside a cheap old ball mouse! So 20 years ago you got what you paid for, and even 10 years ago it was obvious that the Kensington products were still vastly superior in quality to their competition and based on the reviews here that still seems to be the case.

**Q: Can the Expert side scroll?  I use spreadsheets that are really wide and have a lot of columns and need that feature.**
A: Even better than holding the SHIFT key, you can scroll horizontally ONE-HANDED: Assign one of the additional buttons to activate the SHIFT key using the included KENSINGTON TRACKBALL WORKS software. I recommend using the button opposite your thumb so you can use your thumb to scroll horizontally. So, for those RIGHT-handed assign SHIFT to the TOP RIGHT button, for LEFT-handed assign SHIFT to the TOP LEFT button. This works on Windows and Mac OS X.More Info: http://www.kensington.com/us/us/6498/trackballworks%e2%84%a2-customization-software

**Q: Does the scroll ring on this mouse have clicks that you can feel while scrolling - when scrolling through a set of images to be able to know that you**
A: No, I don't know if the people above had a different version of the mouse or something but there are NO clicks on the scroll ring. It scrolls smoothly.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Ambidextrous Trackball
*by M***B on February 14, 2019*

First of all, I want to note that I bought this on sale for around $58. At that price, you cannot possibly do better than this trackball, and I own and use a LOT of trackballs. At its normal $99 price, I think you can get better value elsewhere unless you absolutely need a left handed or ambidextrous trackball.I am right handed, and use this on my left side to give my right hand a break and for when I'm just leaning back and scrolling through web pages or documents. For certain programs (editing in particular), I will swap this to my primary hand. Being ambidextrous was vital to me.Yes, the scroll ring on this trackball has a weird feeling. The other reviews are not lying to you. The ring has a little side to side give to it but I don't have a gritty feeling like others seem to have, rather a plastic on plastic rubbing sensation. It doesn't bother me in the slightest, but it might bother you.I don't agree with people saying the trackball is too high or the angle is weird. With the included palm/wrist rest, I find it to be perfect. If you are trying to manipulate this trackball with the tips of your fingers, you are going to be at a weird angle, but you're also not using the trackball correctly and will never be able to reach the buttons. If you're right handed, the base of your hand/palm should to be centered on the included rest, with your pointer finger resting on the top left button, your ring finger resting on the top right button and using those two fingers, in conjunction with your middle finger to manipulate the trackball.That brings us to the software and buttons themselves. The Kensington software is fantastic. It works perfectly on my Mac, whether I am on Bluetooth or USB (ignore the reviews saying the software won't work with Mac when on Bluetooth, that is no longer correct). You can adjust the buttons at both the global level and at the individual program level.All in all, you cannot possibly do better for the price at $58. For reference, I have an Elecom Huge, which I purchased heavily discounted, a Logitech MX Ergo (Plus version), Logitech M570 and a Logitech Performance MX optical mouse. The Logitech MX Ergo Plus is my primary right handed mouse with this Kensington on my left side, getting almost equal and often simultaneous use. Occasionally I'll go to the Elecom Huge on my right hand to get my thumb a break. The Logitech M570, which the Ergo Plus replaced, is my travel trackball as well as the trackball I'll use on the couch or in bed if I'm on the computer.If you're into trackballs and you can get this trackball at or around $60, it should be a no hesitation purchase.

### ⭐⭐⭐⭐⭐ Impressive quality!
*by G***. on August 4, 2024*

I bought this to replace an older one of the same model, that has always (from new) had a crappy scroll ring. I tried everything, lube, taking it apart and cleaning, etc. It just never was smooth and accurate. Something I have read in other reviews of the same product. Not smooth scrolling, rough feeling, inaccurate scroll. etc.I figured I'd take a chance, since some of the reviews seemed not to mention any of this. I got it, set it up and it's EXCELLENT! No more rough scroll, inaccurate scroll, or any issues at all....so far. I haver read of connection problems, even wired, but so far, no problems on a 2021 iMac, with Apple M1 silicon.I have read complaints on the Kensington Works software, especially from some Mac users. I got away from that entirely a while back, using the (paid version) of "Steermouse" . It takes a bit of a learning curve, but you can set nearly anything you want, and it just WORKS.I hope this review helps any other long time Expert Trackball users, although I may have just gotten lucky??! This device does have a rocky track record of reliability and correct operation, so your mileage may vary. But I will say, once set up and working properly, it is a very nice pointing device, if you are into trackballs. I also have a CST L-trak, but keep coming back to the Kensington. It's that scroll wheel...when it works right!

### ⭐⭐⭐⭐⭐ Computer navigation the way it should be!
*by J***S on January 31, 2014*

After having read several reviews around the web and being aware of the potential downsides as well as the upsides, I decided to buy myself one of these. Boy, am I glad I did. Admittedly, I'm the kind of person who's not satisfied with the typical mousing solution (I have really big hands and I do a lot of delicate work) and likes to try new things, so if that's not you then you may want to try one out before you buy if possible, or at least get one with a return policy. Caveat emptor. That being said, short of building a custom one myself, the Kensington Expert Mouse is pretty much what I want in a trackball, and having used it for awhile any regular mouse feels foreign and less-than-intuitive.First, the cons, in order of greatest to least issue (and they're all minor issues to me anyway).:: It does have a bit of a backward slope to it, probably about 10-15 degrees, which my large hands and already-tilted desk find mildly awkward. If you have a desk that's fairly high above your lap, then that backward slant will probably match the angle your arms are already at and this won't be an issue.:: The scroll wheel, as has been mentioned elsewhere, does feel a little scratchy, like a plastic-on-plastic sort of texture. It's not quite the buttery-smooth, gliding motion you expect after using the ball itself (more on that later) - it feels more like the back of a plastic spoon sliding across a Formica counter. That said, mine wasn't that bad, and probably would go away with a bit of silicone oil, but other reviews range from "not a problem at all" to "nasty-feeling deal breaker" so I suspect that Kensington's quality control could use a bit of tightening up. Again, get one with a return policy in case you don't like it. Common sense. I find myself using the scroll wheel less than I would otherwise anyway, as I've mapped one of the buttons to middle-click and I use that in web browsers to scroll up and down by moving the cursor. Smoother and easier than the scroll wheel.:: Occasionally, a button click won't register if you press the button on the corner or edge - you have to get closer to the middle. Rarely an issue unless I'm gaming, because my hands have a large span and I may physically miss the button at a critical moment when I'm not paying attention. It'll come with practice, I'm sure, just something to be aware of if you have palm-a-basketball-sized hands like me.Now, to the pros! Whee!:: Yes, it's got a pretty big footprint - it's about 5.5" by 9" with the included stiff-foam wrist rest (which I do recommend using, because of the aforementioned back angle) - but it doesn't move around. It takes up about 60% of the desk space that you'd dedicate to a typical mouse pad. Especially on those pull-out keyboard trays, there isn't enough room to use a mouse, but since the Kensington Expert trackball is under six inches wide it'll fit in a nice little rectangle next to the keyboard. Height is another matter, since the ball itself sticks out pretty high, but I don't personally find it to be too much of an issue. YMMV.:: The four large, programmable buttons. I'm not a lefty, but I mouse left-handed, so being able to map the buttons to essentially whatever I want with Kensington's free software is absolutely a blessing. In addition, different people will prefer to use different fingers for tasks of varying frequency, so whereas I don't right-click much and map it to where my ring finger sits, someone else may put it under their index finger or thumb. The software in general is pretty easy to use, and has enough functionality to feel nicely customizable without being so in-depth that only an advanced power user can take advantage of its potential.:: The trackball. Oh, that trackball. Smoother than a greased Fonzie on a Teflon-coated ice rink. Right out of the package it actually feels slightly rough or not as free-spinning, because the ball and its three contact points are completely pristine. Once you get some skin oils on it through use, it's like buttah. Gross-sounding, I know, but pretty much everything you touch gets skin oil on it. Speaking of which, the ball is just dropped into its socket, so to clean out the inevitable gunk that will accumulate in any trackball assembly you just have to turn it upside down and the ball falls out. No disassembly required. The inside of the socket is smooth plastic, so you just wipe it out and get back to work. The ball itself has a nice bit of weight to it, and is positively pleasurable to the hands in use. It's got a solid feel and has some inertia when you move it, which brings me to the next point...:: It has an infinite range of very smooth motion. I currently have a dual-monitor setup, and (besides being very awkward and un-ergonomic) I despise having to pick up a mouse, move it back to the other side of my mouse pad and continue my motion across the screen. DESPISSSSSE. It makes my fingers recoil just thinking about it... Ahem. Anyways. A quick flick of the ball will send the cursor moving across the screen, and the ball's inertia will continue the motion. It doesn't jump around or go crazy, it just follows the ball like it's supposed to. I have the acceleration parameter in the software set to maximum, so a fast motion of the ball will cover lots of ground quickly, but slow motions will still allow fine, precise positioning of the mouse. This becomes an even greater blessing with triple- or quad-monitor setups, and once again, this trackball takes up less desk space than an ordinary mouse. You don't have to have a huge screen to need this, either... for extra-fine work like Photoshop or video editing, you may want to slow the cursor speed down, which effectively makes the screen much larger relative to the motion of the mouse. There is no picking up and putting down with the Kensington Expert trackball - you just keep rolling. If you're not there yet... keep rolling. It feels natural, the way navigating a computer should.So, to sum it all up, I guess I could say that I love my Kensington Expert Mouse because it feels right. It's intuitive to use, customizable, ergonomic, and it just works. There are a couple little niggles, but in my humble opinion they are far outweighed by how they make my computing experience easier and more natural. Because everyone has different needs for their computing experience, not everyone will want or need one of these. If I was just an occasional casual computer user that isn't concerned with ergonomics or ease of use, I would absolutely think twice about spending $75 on a mouse I'm not sure I'll like when the one I have mostly does what I need it to. But that's probably not Kensington's primary market here. For me, and people like me, it's worth the money to make my interface with my computer feel good, because I use it every day.

## Frequently Bought Together

- Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8"
- Aproca Hard Storage Travel Case for Kensington Expert Wireless/Wired Trackball Mouse K72359WW K64325
- co2CREA Hard Travel Case Replacement for Kensington Expert Wireless/Wired Trackball Mouse K72359WW / K64325

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ro/products/22784003-expert-wireless-trackball-mouse-k72359ww-black-3-5-x-6](https://www.desertcart.ro/products/22784003-expert-wireless-trackball-mouse-k72359ww-black-3-5-x-6)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-25*