---
product_id: 22784003
title: "Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5\" x 6.1\" x 8\""
brand: "kensington"
price: "€ 229.18"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/22784003-kensington-expert-wireless-trackball-mouse-k72359ww-black-3-5-x
store_origin: HR
region: Croatia
---

# 55mm precision ball Patented scroll ring Auto-sleep power saver Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8"

**Brand:** kensington
**Price:** € 229.18
**Availability:** ✅ In Stock

## Summary

> 🎯 Master your workflow with precision and comfort — the Expert Mouse that means business.

## Quick Answers

- **What is this?** Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8" by kensington
- **How much does it cost?** € 229.18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/22784003-kensington-expert-wireless-trackball-mouse-k72359ww-black-3-5-x)

## 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

- • **Tailored to You:** Fully customizable 4-button layout and adjustable scroll/cursor speeds via KensingtonKonnect software.
- • **Effortless Navigation:** Patented scroll ring lets you breeze through long documents and web pages with a simple finger glide.
- • **Seamless Connectivity:** Dual wireless modes via Bluetooth LE or 2.4GHz USB dongle keep you connected without clutter.
- • **Ergonomic Comfort, All Day:** Detachable wrist rest supports your hand and wrist, reducing fatigue during marathon work sessions.
- • **Precision at Your Fingertips:** Large 55mm Diamond Eye optical trackball ensures pixel-perfect cursor control for flawless multitasking.

## Overview

The Kensington Expert Wireless Trackball Mouse (K72359WW) combines a large 55mm optical trackball with patented scroll ring technology for precise, effortless navigation. Designed for ambidextrous use, it features a detachable ergonomic wrist rest and customizable buttons via KensingtonKonnect software. Connect wirelessly through Bluetooth LE or a 2.4GHz USB dongle, with smart power-saving auto-sleep mode. Compatible with Windows, macOS, and Chrome OS, it offers 3 years of coverage and lifetime technical support, making it a top-tier choice for professionals seeking productivity and comfort.

## Description

The Expert Mouse Wireless Trackball gives you the freedom to be hyper-productive without being limited by a USB cable. The trackball can be paired through Bluetooth 4. 0 LE to save a valuable USB port, or connected via USB Nano receiver. KensingtonWorks software offers incredible customization, and optical tracking technology offers smooth, precise cursor control. Plus, our award-winning Scroll Ring lets you quickly scan up and down web pages or long documents. Add it all up and you get exceptional comfort and ease-of-use from the brand that has set the industry standard in trackballs for more than 20 years.

Review: Better than other trackballs - My second one of these trackballs. Lost my first one to my Spouse. Keeping it in the family. The raised ridge ring makes getting around the screen so much more efficiently. It’s not cheap but it’s worth losing the frustration. I know it also has programmable buttons but we will attempt those changes for later. Kinda like leaving room to grow more in love with this trackball till later.
Review: 24-hour Initial Review – Early Pros & Concerns - February 04, 2024 Update: Track ball works well. Doesn't seem to have but one issue and that issue is probably my problem. The scroll ring sometimes and my fingers don't jive causing me top hit one of the corner buttons. I must further practice, do much more practice. New Thought, 31dec23: Dragging and dropping, for instance, an email in MS Outlook to a folder can be challenging. I have not figured out the best method. Am looking for any ideas... 28dec23: Overall, I like the trackball and am tentatively at about 60/40 thinking to keep the device. Has many interesting functions and possibilities. Will know more as I work to better use the device. I definitely need more practice with the trackball because my long-term use of a regular mouse allows me to be pretty fast with the mouse. Early Pro’s: 1. Bluetooth connecting is really easy. 2. Kensington Works software for the trackball is easily downloaded for the device and pretty easy to use although it is not overly intuitive. 3. Large trackball seems very good particularly located in the mid position. Is good for me with some tremors and a shaky thumb compared with a side trackball. The middle trackball is far superior, for me, to the side mounted track balls. With practice, I am sure that I can rapidly move the cursor via the trackball. 4. Left Click/lower left button works pretty well. I seem to have it pretty well figured. Using my thumb for this button. 5. Right Click/lower right button not so handy as the Left Click button. Learning. May do better with it after more practice. 6. Have not really used upper two buttons, yet. 7. Scroll ring works well. Don’t have clicking noise that other reviewers have reported. 8. Don’t know how the battery life will be; we shall see. 9. Don’t yet know how the wrist rest will be although it seems okay with this short time review. Early Concerns: 1. Will take considerable practice for me which I am willing to do to become proficient with the trackball. 2. Have already learned to be very careful not to simultaneously touch the trackball while trying to scroll. Is easy to do! Result is my inadvertent action takes me some crazy place I did not want to go!

## 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 |
|---------------|-------|
| ASIN | B01936N73I |
| Batteries | 1 A batteries required. (included) |
| Best Sellers Rank | #3 in Computer Trackballs |
| Brand | Kensington |
| Color | Black |
| Computer Memory Type | DDR3 SDRAM |
| Customer Reviews | 4.2 4.2 out of 5 stars (5,264) |
| Date First Available | January 12, 2016 |
| Hardware Platform | PC,MAC |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 6.02 x 4.92 x 2.76 inches |
| Item Weight | 1.35 pounds |
| Item model number | K72359WW |
| Manufacturer | Kensington |
| Number of Processors | 1 |
| Operating System | Chrome, Mac, Windows |
| Power Source | Battery Powered |
| Product Dimensions | 6.02 x 4.92 x 2.76 inches |
| Series | Expert Mouse |
| Wireless Type | 2.4 GHz Radio Frequency, 802.11a/b/g/n |

## Product Details

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

## Images

![Kensington 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)
![Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8" - Image 2](https://m.media-amazon.com/images/I/71Myd0Wyo-L.jpg)
![Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8" - Image 3](https://m.media-amazon.com/images/I/81TwFHHlwpL.jpg)
![Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8" - Image 4](https://m.media-amazon.com/images/I/71WQJe1AhQL.jpg)
![Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8" - Image 5](https://m.media-amazon.com/images/I/71gjLLKPfyL.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

### ⭐⭐⭐⭐⭐ Better than other trackballs
*by S***1 on March 7, 2026*

My second one of these trackballs. Lost my first one to my Spouse. Keeping it in the family. The raised ridge ring makes getting around the screen so much more efficiently. It’s not cheap but it’s worth losing the frustration. I know it also has programmable buttons but we will attempt those changes for later. Kinda like leaving room to grow more in love with this trackball till later.

### ⭐⭐⭐⭐⭐ 24-hour Initial Review – Early Pros & Concerns
*by J***S on December 28, 2023*

February 04, 2024 Update: Track ball works well. Doesn't seem to have but one issue and that issue is probably my problem. The scroll ring sometimes and my fingers don't jive causing me top hit one of the corner buttons. I must further practice, do much more practice. New Thought, 31dec23: Dragging and dropping, for instance, an email in MS Outlook to a folder can be challenging. I have not figured out the best method. Am looking for any ideas... 28dec23: Overall, I like the trackball and am tentatively at about 60/40 thinking to keep the device. Has many interesting functions and possibilities. Will know more as I work to better use the device. I definitely need more practice with the trackball because my long-term use of a regular mouse allows me to be pretty fast with the mouse. Early Pro’s: 1. Bluetooth connecting is really easy. 2. Kensington Works software for the trackball is easily downloaded for the device and pretty easy to use although it is not overly intuitive. 3. Large trackball seems very good particularly located in the mid position. Is good for me with some tremors and a shaky thumb compared with a side trackball. The middle trackball is far superior, for me, to the side mounted track balls. With practice, I am sure that I can rapidly move the cursor via the trackball. 4. Left Click/lower left button works pretty well. I seem to have it pretty well figured. Using my thumb for this button. 5. Right Click/lower right button not so handy as the Left Click button. Learning. May do better with it after more practice. 6. Have not really used upper two buttons, yet. 7. Scroll ring works well. Don’t have clicking noise that other reviewers have reported. 8. Don’t know how the battery life will be; we shall see. 9. Don’t yet know how the wrist rest will be although it seems okay with this short time review. Early Concerns: 1. Will take considerable practice for me which I am willing to do to become proficient with the trackball. 2. Have already learned to be very careful not to simultaneously touch the trackball while trying to scroll. Is easy to do! Result is my inadvertent action takes me some crazy place I did not want to go!

### ⭐⭐⭐⭐ Decent Mouse with a few oversights in the design process
*by C***H on August 13, 2018*

I have purchased the Expert Wireless and Slimblade Trackball mice to compare which one is better in attempts to resolve possible RSI issues. Here is my opinion on how they stack up. Expert Mouse Pluses: +Fits great in hand +Buttons have a slight edge, which makes it easier to click than the slimblade +The scroll wheel works SIGNIFICANTLY better than the SlimBlade's twist to scroll option, especially when confined to a smaller window where the mouse jetting across the screen will cause you to randomly quit scrolling where you desire +The palm rest really helps, and is quite necessary for this mouse because of the angle +Wireless and Bluetooth options Expert Mouse Negatives: -Angle that your hand sits at actually causes more stress, and is the reason I will probably be returning this device -Scroll wheel has a very cheap design. While I like it better than the SlimBlade scrolling, it makes a strange noise any time you scroll more than a couple of clicks and makes me feel as though the product will break sooner due to cheap plastic parts. Also the wheel doesn't have any stop points/clicks, but this doesn't both me too much -Under the ball the mouse has no hole at the bottom, and the area isn't smooth, so it makes cleaning the area under the ball more difficult Slimblade Mouse Pluses: +Easy to clean - under the trackball everything is smooth and there is a hole at the bottom. This allows for skin cells to fall out of the mouse and with some occasional cleaning, you can keep the skin cells out of this mouse much easier +The angle is much nicer than the Expert mouse, leaving your hand feeling much more comfortable after a solid day of use +The design just looks nicer than the Expert mouse when they sit side by side Slimblade Mouse Negatives: -The keys are very flat and have no edges like the expert mouse, which actually makes clicking ever so slightly less comfortable -The mouse doesn't quite fit in your hand as nicely because it is not at a raised angle, but this is also a positive because it doesn't leave your hand feeling as fatigued at the end of a day -The scrolling functionality leaves a lot to be desired. While it doesn't feel as cheap as the Expert mouse, it causes a lot of issues while scrolling within small areas because your pointer will move and lose focus if you do a decent amount of scrolling at once down a large list. This has caused some loss of productivity and was the main reason I purchased the Expert mouse in hopes that the experience would be better. While I'd like to see the ability to scroll by turning the ball, I think it either needs to be refined to disable pointer motion altogether when activated, or they should bring back the rotatable wheel and put it on ball barrings so it can not only scroll freely and you could just stop it, but also to give it a smooth feel, instead of a cheap one. People would pay extra knowing the quality is worth it. -Only option is wired. Not only does this leave unsightly cables on my desk, it also makes it more difficult to switch between my right and left hand throughout the day. -Should have came with a wrist wrest like the Expert does All and all the only reason I choose the Slimblade over the Expert is because the expert is at a funny angle which causes more issues than just using a traditional mouse. Otherwise I'd totally select the Expert over the Slimblade.

## 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

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-12*