ELECOM EX-G Left Handed Thumb Control Trackball Mouse Wireless M-XT4DRBK-G
- Left-handed thumb trackball, red ball
- 6 buttons, programmable
- 1500 dpi maximum sensitivity, optical sensing
- 273 days average battery life on 1 AA battery, included
- 5.0 meters wireless range
- 4.5 ounces, 3.7"L x 4.9"W
- PC, Mac and tablet compatible
- 1 year manufacturer warranty
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A left-handed thumb trackball that moves the pointer without moving the whole mouse, with programmable buttons and a long listed battery life. It is made for the left hand only, so right-handed users should look elsewhere.
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ASIN: B08GR2K8WHModel: M-XT4DRBK-GCategory: Trackballs
Styles Available
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Overview
Rolling the ball with the left thumb moves the pointer while the hand and wrist stay still. The wireless trackball reads movement optically, carries six programmable buttons and runs on one AA battery.
Choose it if a conventional mouse strains the left hand or wrist and desk space is short. The limit is handedness, since the shape is built for the left hand only, and the listing says wireless without naming a receiver or radio type.
Who it's for
A left-handed office worker, designer or editor with limited desk space will use the thumb ball and the assignable buttons. Right-handed users, and people who prefer to move the pointer with the fingers, should choose a different shape.
Pros and cons
- Left-hand thumb control
- Long listed battery life
- Works with PC, Mac and tablet
- Wireless, no cable on the desk
- Left hand only
- Needs an AA battery
- Receiver type not listed
Performance notes
The ball is rolled by the thumb, so the pointer moves while the mouse body stays still, which cuts wrist travel. The optical sensor reads ball rotation, and the maximum sensitivity setting decides how far the pointer moves per roll. Button assignments depend on the driver software, which the listing does not detail.
Specifications
| Brand | エレコム(ELECOM) |
|---|---|
| Model | M-XT4DRBK-G |
| Dimensions & fit | |
| Item Dimensions L x W | 3.7"L x 4.9"W |
| Hand Orientation | Left |
| Item weight | 4.5 ounces |
| Capacity & performance | |
| Range | 5.0 meters |
| Power & efficiency | |
| Power Source | Battery Powered |
| Battery Average Life | 273 days |
| Construction & materials | |
| Enclosure Material | Plastic |
| Compatibility & installation | |
| Compatible Devices | Personal Computer, Mac, Tablet |
| Connectivity Technology | Wireless |
| Warranty & support | |
| Warranty Description | 1 year manufacturer |
| Other details | |
| Number of Batteries | 1 AA battery, included |
| Additional Features | Ergonomic Design, Programmable Buttons, Wireless |
| Button Quantity | 6 |
| Movement Detection | Optical |
| Mouse Maximum Sensitivity | 1500 dots per inch |
Closest rivals on specs
Kensington SlimBlade Pro Wireless Trackball- Battery Average Life 273 vs 122 days (+124%)
- Item Weight 0.28 vs 1.06 pounds (-74%)
Frequently asked questions
Does the ELECOM EX-G M-XT4DRBK-G work with a Mac?
The listing names Personal Computer, Mac and Tablet as compatible devices. It gives no operating system version list.
Can a right-handed person use the ELECOM EX-G left handed trackball?
The title calls it a left handed thumb control model and the hand orientation is listed as Left, so right-handed users need a different model.
Is the ELECOM EX-G M-XT4DRBK-G wired?
No. Connectivity is listed as Wireless, and the power source is a battery.