EM04 Wireless Trackball Mouse
Details
- 15° ergonomic tilt – promotes natural handshake grip, reduces wrist strain for all‑day comfort
- Thumb-operated trackball – stationary control, perfect for tight spaces like sofas, laps, or cluttered desks
- Triple device connectivity – Bluetooth + 2.4GHz USB, connect up to 3 devices simultaneously, switch with one button
- Silent left/right clicks – over 90% noise reduction, ideal for offices, libraries, and quiet environments
- 5‑level adjustable DPI (200/400/800/1200/1600) – customizable cursor speed for different tasks
- Forward/backward side buttons – enhance web browsing efficiency (customizable via third‑party software on Windows/Mac)
- Smooth tracking ball – glossy finish, high‑density particle coating for precise and fluid movement
- 450mAh rechargeable battery – up to 70 hours continuous use, USB‑C charging, battery level indicator included
- Easy to clean – trackball can be popped out for regular maintenance
- Wide compatibility – Windows, macOS, iOS, Android, Chrome OS, Linux
- 1‑year manufacturer warranty – purchase protection
Free Shipping
30-Day Returns
2 Years
Warranty
Ergonomic Thumb-Controlled Tracking
Upgrade your everyday workflow with the EM04 Wireless Trackball Mouse. Designed with smooth thumb-controlled tracking, multi-device wireless connection, quiet clicks, and rechargeable power, EM04 helps reduce wrist movement while keeping your workspace efficient and comfortable.
A Thumb-Control Trackball
With the thumb-operated trackball, you do not need to move your whole hand to control the cursor, helping reduce hand and wrist fatigue during long work sessions.
Package includes: EM04 Wireless Trackball Mouse, USB receiver, Type-C charging cable, and user manual.
Adjustable DPI
Choose from 5 DPI levels to adjust cursor speed for different work habits and tracking needs.
Rechargeable Power
Built-in rechargeable battery means no frequent battery replacement. Charge easily with the included Type-C cable.
Universal Compatibility
Works with USB-enabled and Bluetooth-enabled devices, including Windows, macOS, Android, laptops, desktops, and tablets.
Low Battery Indicator
The indicator light flashes when battery is low, helping you know when it is time to recharge.
Why Choose EM04
EM04 is built for users who want smooth cursor control without constantly moving their wrist or arm. The thumb-controlled trackball lets you work comfortably on a desk, sofa, lap, or compact workspace, making it especially useful for narrow or cluttered desk setups.
With Bluetooth and 2.4GHz wireless connection, 3-device switching, 5 DPI levels, quiet clicks, rechargeable battery, and an ergonomic curved shape, EM04 gives you a smoother and more flexible way to work across laptop, desktop, tablet, and Mac setups.
FAQ
Does EM04 require moving the mouse?
No. EM04 uses a thumb-controlled trackball, so you can move the cursor without sliding the mouse across your desk.
How many devices can EM04 connect to?
EM04 supports up to 3 devices through Bluetooth and 2.4GHz wireless connection.
Is EM04 rechargeable?
Yes. EM04 has a built-in 450mAh rechargeable battery and can stand by for up to 1 month on a full charge.
Can I adjust the cursor speed?
Yes. EM04 supports 5 DPI levels: 200, 400, 800, 1200, and 1600 DPI.
Are the buttons programmable?
No. The buttons are not programmable. The Forward and Back buttons are not compatible with macOS.
Does it take time to get used to?
Yes. A trackball mouse feels different from a traditional mouse, so first-time users may need a short adjustment period.
| Model | EM04 |
|---|---|
| Type | Thumb‑operated trackball mouse |
| Ergonomic Tilt | 15° |
| Connectivity | Bluetooth + 2.4GHz USB (3 devices simultaneously) |
| DPI Levels | 200 / 400 / 800 / 1200 / 1600 |
| Buttons | Left, right, scroll wheel, DPI button, forward/backward side buttons |
| Silent Clicks | Yes (left/right buttons) |
| Battery Capacity | 450mAh rechargeable lithium |
| Battery Life | Up to 70 hours continuous use |
| Charging Port | USB‑C |
| Tracking Ball Diameter | 34mm (approx.) |
| Compatibility | Windows, macOS, iOS, Android, Chrome OS, Linux |
| Hand Size Recommendation | Medium to large (palm length over 17.5cm / 6.9 inches) |
| Color | Black |