--- product_id: 50740662 title: "ELECOM DEFT Trackball Mouse, Index Finger, 2.4GHz Wireless" brand: "エレコム(elecom)" price: "¥794" currency: CNY in_stock: true reviews_count: 13 category: "エレコム(Elecom)" url: https://china.desertcart.com/products/50740662-elecom-deft-trackball-mouse-index-finger-2-4ghz-wireless store_origin: CN region: China --- # Precision optical sensor with 750/1500 DPI 6-month battery life with included AA battery 8 customizable buttons + horizontal scroll ELECOM DEFT Trackball Mouse, Index Finger, 2.4GHz Wireless **Brand:** エレコム(elecom) **Price:** ¥794 **Availability:** ✅ In Stock ## Summary > 🖱️ Elevate your workflow with precision, comfort, and control — don’t get left behind! ## Quick Answers - **What is this?** ELECOM DEFT Trackball Mouse, Index Finger, 2.4GHz Wireless by エレコム(elecom) - **How much does it cost?** ¥794 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [china.desertcart.com](https://china.desertcart.com/products/50740662-elecom-deft-trackball-mouse-index-finger-2-4ghz-wireless) ## Best For - エレコム(elecom) enthusiasts ## Why This Product - Trusted エレコム(elecom) brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual DPI Settings:** Seamlessly switch between 750 and 1500 DPI for precise or swift cursor control tailored to your workflow. - • **8 Fully Programmable Buttons:** Customize shortcuts and commands with ELECOM Mouse Assistant software to boost productivity. - • **Ergonomic Hand-Shaped Design:** Crafted around 6 hand muscle structures for all-day comfort and reduced wrist strain. - • **Easy Maintenance & Durability:** Removable trackball with smooth ruby bearings and buttons rated for 10 million clicks ensures longevity. - • **Wireless Freedom with 2.4GHz USB:** Cut the cord and enjoy reliable, lag-free connectivity up to 10 meters—perfect for clutter-free desks. ## Overview The ELECOM DEFT Trackball Mouse combines ergonomic innovation with high-performance optical tracking, featuring 8 customizable buttons and dual DPI settings. Its wireless 2.4GHz connectivity and long-lasting battery make it ideal for professionals seeking comfort and efficiency. Designed for Windows and macOS, this compact, durable device reduces wrist strain while delivering precise cursor control. ## Description Trackball mouse with 8-Button FunctionDesigned with a high-performance gaming optics system sensor and lensThis trackball mouse bases on ergonomics, effectively reducing user’s wrist strain and muscle pain The ball is held in place by the ball bearings, but can easily be popped out of the device, by pushing it through the hole in the bottom and it can be easily cleanedSystem requirements: System requirements: Windows 7, Windows 8.1, Windows RT8.1, Windows 10 or later (Horizontal scrolling function is not working in Windows RT8.1), macOS 10.10 or laterResolution DPI: 750/1500 count (switchable)Size & Weight: Size: W3.7"(94.7mm) X L4.9"(124.4mm) X H1.9"(47.9mm), Weight: 4oz(without battery)Connectivity: wirelessBattery requirement: 1 X AA battery(Included)- Battery Remaining Light Lamp equippedEnglish Manual & Mouse Assistant Software can be download for FREE. Please check the manual in the box or can be found on desertcart Product Page. Listed as 【Technical Specification：User Manual [PDF ]】 Review: Excellent office trackball. - Excellent office trackball. - It's easy to use - It has plenty of buttons for customisation and software to remap them - Small enough to not get in the way but still comfortable - Accurate with very little lift-off (better than the huge trackball in this aspect) - Very useful scroll wheel. Trackballs without a scroll wheel are annoying. - Lightweight and easy to carry - Wireless, so no cables to deal with. - Sufficiently sturdy plastics and no sticky rubber. - Good price for a trackball. The only downsides are - The back and forward buttons don't work on a Mac - The polling rate isn't high enough for gaming (you get aliasing problems). Review: MS Trackball Explorer Replacement? Maybe.. - First of all I'm writing this about the DEFT version of this trackball with the smallest of the 3 balls (M-DT2DRBK). I'm a time user of trackballs including the classic but sadly departed Microsoft Trackball Explorer 1.0 (I own 3), and the Logitech Trackman Marble FX (even rarer and more worshipped than the MTE). Is this an MTE replacement? Maybe. Overall build quality seems much better than the MTE. I've seen teardowns of the HUGE model, and if this model is similar, then build quality surpasses the MTE especially on the inside! Ergonomics wise.... the DEFT I find is not quite as comfortable as the MTE. The ball size (34mm) is noticeably smaller than the MTE (44mm). But for me at least the hand fit is very similar. This results in skittery accuracy for me. In terms of smoothness, those ruby bearings are just as good as the ceramic bearings I've fitted in my MTEs. (No nose grease was needed to get the ball spinning smoothly) Buttons feel is OK, perhaps a bit heavy. I'd prefer 2 buttons on the right like the MTE for backward & forward. Like others have said the 3 function buttons on the top are hard to get to, so use them for rarely used functions. I did try the HUGE size too. This too is built very well, but I found that for my hand size (22cm spread tip to tip from thumb to little finger) it was simply too big & so quickly became uncomfortable. The big ball (54mm) was nice though. Ideally I think I'd prefer the size of the Pro (44mm)...but as I write this, it's more than 3x the cost!!!!! The moral of the story is...if they fit your hand size the Elecom Trackballs are very good. If one size is wrong for you, do try another. I'll probably keep this one as a nice wireless ball, but so long as I can keep gluing them together again, it probably won't replace my MTEs full time..... ## Features - 《Hand-Shaped Unique Design》The mouse design is based on 6 different muscle and skeletal structures of the hands giving special emphasis to the folding actions of the hands to provide a new level of hand comfort. - 《Optical Tracking Technology》The DEFT wireless trackball is an index-finger operated trackball with unparalleled operating performance. - 《Functional 8 Buttons》It comes with 8 physical buttons on the device and the two extra buttons are the scrollwheel tilting that allow horizontal scroll. The high durability left and right button switches passed the click testing of more than 10 Million clicks. ELECOM Mouse Assistant software can be easy to customize button functions. - 《DPI Cursor》Designed with a high-performance gaming optics system sensor and lens. The DPI button can easily change between 750(LOW) and 1500(HIGH) DPI, making the movements of your cursor faster or slower. The ball is held in place by the ball bearings, but can easily be popped out of the device, by pushing it through the hole in the bottom and it can be easily cleaned. - 《Product Details》System requirements: Windows 7, Windows 8.1, Windows RT8.1, Windows 10 or later (Horizontal scrolling function is not working in Windows RT8.1), macOS 10.10 or later, Size: W3.7"(94.7mm) X L4.9"(124.4mm) X H1.9"(47.9mm), Weight: 4oz(without battery), DPI: 750/1500 count (switchable), Connectivity: Wireless USB2.4GHz ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0171QQ7FM | | Antenna Location | Gaming, Office | | Are Batteries Included? | Yes | | Are Batteries Required | Yes | | Battery Average Life | 6 months | | Best Sellers Rank | 22,049 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 485 in Mice | | Brand | エレコム(ELECOM) | | Brand Name | エレコム(ELECOM) | | Button Quantity | 8 | | Colour | Black / Black ball | | Compatible Devices | Computers with Windows and macOS OS and USB port | | Connectivity technology | USB | | Country of Origin | China | | Customer Reviews | 4.1 out of 5 stars 2,546 Reviews | | Enclosure Material | Plastic | | Global Trade Identification Number | 04953103473713 | | Hand Orientation | Right | | Hardware Platform | Mac, PC | | Included Components | Batteries | | Item Dimensions L x W | 12.4L x 9.5W centimetres | | Item Type Name | Wireless USB2.4GHz | | Item Weight | 0.25 Pounds | | Manufacturer | ELECOM | | Manufacturer Part Number | M-DT2DRBK | | Minimum Required Operating System Version | Windows 7 | | Model Name | M-DT2DRBK | | Model Number | M-DT2DRBK | | Mouse Maximum Sensitivity | 1500 Dots per Inch | | Movement Detection | Optical | | Movement detection technology | Optical | | Network Connectivity Technology | USB | | Number of Batteries | 1 AAA batteries required. (included) | | Number of buttons | 8 | | Operating System | Windows 7, Windows 8.1, Windows RT8.1, Windows 10 o versioni successive, macOS 10.10 o versioni successive | | Power Source | Battery Powered | | Product Features | Programmable Buttons, Wireless | | Range | 10.0 meters | | Special feature | Programmable Buttons, Wireless | | Style Name | Wireless USB2.4GHz | | Theme | Video Game | | Unit Count | 1.0 count | ## Product Details - **Brand:** エレコム(ELECOM) - **Colour:** Black / Black ball - **Connectivity technology:** USB - **Movement detection technology:** Optical - **Special feature:** Programmable Buttons, Wireless ## Images ![ELECOM DEFT Trackball Mouse, Index Finger, 2.4GHz Wireless - Image 1](https://m.media-amazon.com/images/I/61v3NqKZIGL.jpg) ![ELECOM DEFT Trackball Mouse, Index Finger, 2.4GHz Wireless - Image 2](https://m.media-amazon.com/images/I/71hz6zkuDDL.jpg) ![ELECOM DEFT Trackball Mouse, Index Finger, 2.4GHz Wireless - Image 3](https://m.media-amazon.com/images/I/61LV9d4qMPL.jpg) ![ELECOM DEFT Trackball Mouse, Index Finger, 2.4GHz Wireless - Image 4](https://m.media-amazon.com/images/I/61hXrlrKGgL.jpg) ![ELECOM DEFT Trackball Mouse, Index Finger, 2.4GHz Wireless - Image 5](https://m.media-amazon.com/images/I/61GlDFd1obL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Questions & Answers **Q: Does the trackball use an aa or aaa battery? description says aa first, then aaa.** A: Just checked; AA 18 months in and still using the original. **Q: Does this scroll left and right too?** A: It does have tilt wheel left and right. Thank you. ELECOM Japan **Q: is this trackball mouse compatable with an Acer 11 CB2-132 Chromebook?** A: Thank you for your inquiry. The mouse works in Chromebook Acer 11 CB2-132. However, the support soft (Mouse assistant) DOES NOT support in Chromebook. You are not able to be setting mouse butter in your favorite. **Q: Have just bought one of these. It arrived and is working but the instructions are all in Japanese. Anyone have an idea where i can find the software t** A: Search by mouse model. I found PDF instructions in english without any problems ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent office trackball. *by S***T on 16 February 2025* Excellent office trackball. - It's easy to use - It has plenty of buttons for customisation and software to remap them - Small enough to not get in the way but still comfortable - Accurate with very little lift-off (better than the huge trackball in this aspect) - Very useful scroll wheel. Trackballs without a scroll wheel are annoying. - Lightweight and easy to carry - Wireless, so no cables to deal with. - Sufficiently sturdy plastics and no sticky rubber. - Good price for a trackball. The only downsides are - The back and forward buttons don't work on a Mac - The polling rate isn't high enough for gaming (you get aliasing problems). ### ⭐⭐⭐⭐ MS Trackball Explorer Replacement? Maybe.. *by S***H on 26 April 2021* First of all I'm writing this about the DEFT version of this trackball with the smallest of the 3 balls (M-DT2DRBK). I'm a time user of trackballs including the classic but sadly departed Microsoft Trackball Explorer 1.0 (I own 3), and the Logitech Trackman Marble FX (even rarer and more worshipped than the MTE). Is this an MTE replacement? Maybe. Overall build quality seems much better than the MTE. I've seen teardowns of the HUGE model, and if this model is similar, then build quality surpasses the MTE especially on the inside! Ergonomics wise.... the DEFT I find is not quite as comfortable as the MTE. The ball size (34mm) is noticeably smaller than the MTE (44mm). But for me at least the hand fit is very similar. This results in skittery accuracy for me. In terms of smoothness, those ruby bearings are just as good as the ceramic bearings I've fitted in my MTEs. (No nose grease was needed to get the ball spinning smoothly) Buttons feel is OK, perhaps a bit heavy. I'd prefer 2 buttons on the right like the MTE for backward & forward. Like others have said the 3 function buttons on the top are hard to get to, so use them for rarely used functions. I did try the HUGE size too. This too is built very well, but I found that for my hand size (22cm spread tip to tip from thumb to little finger) it was simply too big & so quickly became uncomfortable. The big ball (54mm) was nice though. Ideally I think I'd prefer the size of the Pro (44mm)...but as I write this, it's more than 3x the cost!!!!! The moral of the story is...if they fit your hand size the Elecom Trackballs are very good. If one size is wrong for you, do try another. I'll probably keep this one as a nice wireless ball, but so long as I can keep gluing them together again, it probably won't replace my MTEs full time..... ### ⭐⭐⭐⭐⭐ • This trackball is absolutely excellent. • It is well built *by J***S on 11 May 2017* AN ELEGANT, UNDERSTATED JAPANESE WARRIOR! DESIGN AND FUNCTIONALITY. • This trackball is absolutely excellent. • It is well built, although it is made out of plastic, the trackball feels robust and compact, offering a plenty of sensibility and feedback when navigating the internet of working on applications. • The design is perfect, its looks is the perfect blend between high tech and professional devise; it has an underlying sense of Japanese wisdom and efficiency. • Its matt black colour, is understated, never looks dirty nor attracts dust • It is very intuitive, all its buttons are well located and fitted. They need to be pressed hard in order to operate then, which means they are long lasting. • The track ball has the perfect size (although it looks small at first). I soon realised the ball has the perfect size as it fits perfectly well with the buttons located in its left and right hand side. Three fingers can work in complete harmony. • Functionality!!!! Every button is programmable, with at 46 different functions plus gestures; this is what makes this devise so special. • The wheel’s performance is like a plane control, smooth and precise. • Improvements: It needs a protecting bag/box to protects its buttons The back of the trackball needs more high in order to allowed the hand to be fully supported on the devise. ## Frequently Bought Together - ELECOM DEFT Trackball Mouse, 2.4GHz Wireless, Finger Control, 8-Button Function with Smooth Tracking, Ergonomic Design, Optical Gaming Sensor, Windows11, macOS (M-DT2DRBK) - ELECOM DEFT PRO Trackball Mouse, Wired, Wireless, Bluetooth 3 Types Connection, Ergonomic Design, 8-Button Function, Red Ball, Windows11, MacOS (M-DPT1MRXBK) - ELECOM HUGE Trackball, 2.4GHz Wireless USB, Index Finger Control, Customizable 8-Button, Large Soft Palm Rest, 52mm Ball, Windows PC Mac (M-HT1DRBK) --- ## 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://china.desertcart.com/products/50740662-elecom-deft-trackball-mouse-index-finger-2-4ghz-wireless](https://china.desertcart.com/products/50740662-elecom-deft-trackball-mouse-index-finger-2-4ghz-wireless) --- *Product available on Desertcart China* *Store origin: CN* *Last updated: 2026-09-15*