---
product_id: 91697083
title: "Kensington 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)"
brand: "kensington"
price: "₨3914"
currency: SCR
in_stock: true
reviews_count: 11
category: "Kensington"
url: https://www.desertcart.sc/products/91697083-kensington-expert-mouse-wireless-trackball-mouse-easy-finger-control-precision
store_origin: SC
region: Seychelles
---

# DiamondEye™ precision tracking Dual wireless: Bluetooth & 2.4GHz 12-month battery life Kensington 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)

**Brand:** kensington
**Price:** ₨3914
**Availability:** ✅ In Stock

## Summary

> 🎯 Master precision. Command comfort. Own your workflow.

## Quick Answers

- **What is this?** Kensington 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) by kensington
- **How much does it cost?** ₨3914 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/91697083-kensington-expert-mouse-wireless-trackball-mouse-easy-finger-control-precision)

## 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

- • **Scroll with a Spin:** Patented Scroll Ring lets you breeze through long documents and web pages—effortless navigation, zero frustration.
- • **Customizable Command Center:** KensingtonWorks software lets you tailor 4 programmable buttons to your workflow—work smarter, not harder.
- • **Precision at Your Fingertips:** DiamondEye™ optical tracking ensures ultra-smooth, pixel-perfect cursor control for maximum productivity.
- • **Ergonomic Ambidextrous Design:** Comfort meets versatility with a soft detachable wrist rest and shape that fits both left and right hands flawlessly.
- • **Seamless Dual Wireless Freedom:** Connect effortlessly via Bluetooth LE or 2.4GHz USB nano receiver—ditch the cables, keep your desk sleek.

## Overview

The Kensington Expert Mouse® Wireless Trackball combines advanced DiamondEye™ optical tracking with dual wireless connectivity (Bluetooth LE and 2.4GHz USB) to deliver precise, cable-free control. Designed for both right- and left-handed users, it features a customizable 4-button layout via KensingtonWorks software and an ergonomic detachable wrist rest for all-day comfort. With up to 12 months of battery life and a patented Scroll Ring for smooth navigation, this trackball is the professional’s choice for productivity and style.

## 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 patented 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 30 years.

Review: A comfortable trackball with many buttons - 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.
Review: Too good - Expensive but good

## Features

- Designed for Surface: Kensington worked directly with Microsoft to provide professional-level solutions that look as good as they function, so you can work like a pro
- Dual Wireless Technology: The ultimate in wireless freedom, allowing you to connect either via Bluetooth LE that allows you to save a valuable USB port or through a highly reliable 2.4GHz USB nano receiver; Limited 3-year warranty
- KensingtonWorks Customization: Free downloadable software provides an even more personalized experience, giving you the ability to assign a wide variety of program functions to each of the 4 buttons, as well as adjusting cursor and scrolling speeds.ChromeOS user can get HID functions for a trackball but will not be able to customize their device through KensingtonWorks. *Windows ARM-based computers are currently not supported. Please check back for future updates on compatibility.
- DiamondEye Optical Tracking: Movement detection technology provides smooth, precise cursor control so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency; Scroll Ring and Large Ball: Spin the dial to move up and down web pages or documents with complete ease. The red ball has been specially designed with an absolute spherical, hard surface for precise tracking and control.
- Ambidextrous Design: Works equally well for both right-handed and left-handed users to get the most out of their trackball; Detachable Wrist Rest: Soft cushioning cradles the hand and wrist in ergonomic comfort for pain-free productivity during extended periods of activity on the computer; SmartFit - Comfort Made Easy: This product is designed to comfortably fit users with average to larger sized hands.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01936N73I |
| Are Batteries Included | Yes |
| Average Battery Life (in hours) | 12 Months |
| Batteries | 1 A batteries required. (included) |
| Best Sellers Rank | #21,607 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #4 in Trackballs |
| Brand | Kensington |
| Colour | Black |
| Computer Memory Type | DDR3 SDRAM |
| Country of Origin | China |
| Customer Reviews | 4.2 4.2 out of 5 stars (5,123) |
| Date First Available | 24 December 2015 |
| Generic Name | Trackball |
| Hardware Platform | Mac, PC |
| Importer | Interface Connectronics Pvt Ltd, # 85, Unit # 3, First Floor V.V.Yoga Saurabha, S.C.Road, Yeshwanthpur, Bangalore, India 560022, Contact: +91-9739952969, sales@icpl.co.in |
| Item Dimensions LxWxH | 15.3 x 12.5 x 7 Centimeters |
| Item Height | 7 Centimeters |
| Item Weight | 612 g |
| Item Width | 12.5 Centimeters |
| Item model number | K72359WW |
| Lithium Battery Energy Content | 8 Watt Hours |
| Lithium Battery Weight | 0.5 Milligrams |
| Manufacturer | ACCO Brands |
| Net Quantity | 1 Count |
| Operating System | Chrome OS, Mac OS 10.13 High Sierra, Windows 8 |
| Packer | Interface Connectronics Pvt Ltd, # 85, Unit # 3, First Floor V.V.Yoga Saurabha, S.C.Road, Yeshwanthpur, Bangalore, India 560022, Contact: +91-9739952969, sales@icpl.co.in |
| Power Source | usb powered |
| Processor Count | 1 |
| Product Dimensions | 15.3 x 12.5 x 7 cm; 612.35 g |
| Wattage | 50 |
| Wireless Type | 2.4 GHz Radio Frequency, 802.11a/b/g/n |

## Product Details

- **Brand:** Kensington
- **Colour:** Black
- **Connectivity Technology:** wireless
- **Movement Detection Technology:** Trackball
- **Special Feature:** Wireless

## Images

![Kensington 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) - Image 1](https://m.media-amazon.com/images/I/81GsK-CUT1L.jpg)
![Kensington 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) - Image 2](https://m.media-amazon.com/images/I/71Myd0Wyo-L.jpg)
![Kensington 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) - Image 3](https://m.media-amazon.com/images/I/81TwFHHlwpL.jpg)
![Kensington 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) - Image 4](https://m.media-amazon.com/images/I/71WQJe1AhQL.jpg)
![Kensington 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) - Image 5](https://m.media-amazon.com/images/I/71gjLLKPfyL.jpg)

## 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

### ⭐⭐⭐⭐⭐ A comfortable trackball with many buttons
*by Y***N on 17 June 2025*

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.

### ⭐⭐⭐⭐⭐ Too good
*by K***L on 31 January 2018*

Expensive but good

### ⭐⭐⭐⭐ Good trackball, but cheap plastic
*by A***A on 14 October 2025*

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.

## 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.sc/products/91697083-kensington-expert-mouse-wireless-trackball-mouse-easy-finger-control-precision](https://www.desertcart.sc/products/91697083-kensington-expert-mouse-wireless-trackball-mouse-easy-finger-control-precision)

---

*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-08*