The MobileTechnica ProtoArc EM03 is a Mac-Gray wireless Bluetooth ergonomic trackball mouse with a left large glossy ball, orange scroll wheel, two side buttons, adjustable angle, and 3-device connection for relaxed hand support.
A guide to measure your hand for the MobileTechnica ProtoArc Wireless Trackball Mouse EM03: Use a credit card to estimate—small <6.9", medium 6.9"-7.5", large >7.5". Best for medium-large hands; two refurbished ergonomic trackball mice shown with specs.
A close-up of the MobileTechnica ProtoArc EM03, a gray ergonomic wireless trackball mouse with an orange scroll wheel and USB-C charging. Text highlights, "Type-C Rechargeable—Charge Once, Power for Months," thanks to its 300-day standby time.
A right hand rests on the MobileTechnica ProtoArc EM03 Wireless Trackball Mouse in Mac-Gray. This rechargeable ergonomic Bluetooth mouse, featuring an adjustable angle and gray trackball, supports natural hand curves and helps ease wrist pain.
A sleek desk shows the MobileTechnica ProtoArc EM03 Wireless Trackball Mouse (Mac-Gray) alongside a keyboard, tablet, monitor, and laptop. The screen reads "Multi-Device Connection 2.4G BT1 BT2," emphasizing its ergonomic design and triple device connectivity.
A gray MobileTechnica ProtoArc EM03 Wireless Bluetooth Trackball Mouse sits on a wood desk next to a loose 44mm ball. Text above reads "Index Finger Trackball Mouse—Large 44mm ball for precise handling." Features ergonomic, wireless control.
A MobileTechnica ProtoArc Wireless Trackball Mouse (EM03) and a tablet with keyboard sit on a small airplane tray table, showcasing how the ergonomic Bluetooth mouse saves space. Text: “Ideal for Tight Spaces. Index Finger Control Liberates Your Cluttered Desk.”.
ProtoArc Wireless Trackball Mouse, EM02 Bluetooth Ergonomic Rechargeable Computer Ball Mouse, Adjustable Angle & 3 Device Connection, Thumb Control and Smooth Tracking for Laptop, PC, Mac-Gray
ProtoArc Wireless Trackball Mouse, EM02 Bluetooth Ergonomic Rechargeable Computer Ball Mouse, Adjustable Angle & 3 Device Connection, Thumb Control and Smooth Tracking for Laptop, PC, Mac-Gray
ProtoArc Wireless Trackball Mouse, EM02 Bluetooth Ergonomic Rechargeable Computer Ball Mouse, Adjustable Angle & 3 Device Connection, Thumb Control and Smooth Tracking for Laptop, PC, Mac-Gray
ProtoArc Wireless Trackball Mouse, EM02 Bluetooth Ergonomic Rechargeable Computer Ball Mouse, Adjustable Angle & 3 Device Connection, Thumb Control and Smooth Tracking for Laptop, PC, Mac-Gray
ProtoArc Wireless Trackball Mouse, EM02 Bluetooth Ergonomic Rechargeable Computer Ball Mouse, Adjustable Angle & 3 Device Connection, Thumb Control and Smooth Tracking for Laptop, PC, Mac-Gray
ProtoArc Wireless Trackball Mouse, EM02 Bluetooth Ergonomic Rechargeable Computer Ball Mouse, Adjustable Angle & 3 Device Connection, Thumb Control and Smooth Tracking for Laptop, PC, Mac-Gray
ProtoArc Wireless Trackball Mouse, EM02 Bluetooth Ergonomic Rechargeable Computer Ball Mouse, Adjustable Angle & 3 Device Connection, Thumb Control and Smooth Tracking for Laptop, PC, Mac-Gray
ProtoArc Wireless Trackball Mouse, EM02 Bluetooth Ergonomic Rechargeable Computer Ball Mouse, Adjustable Angle & 3 Device Connection, Thumb Control and Smooth Tracking for Laptop, PC, Mac-Gray
ProtoArc Wireless Trackball Mouse, EM02 Bluetooth Ergonomic Rechargeable Computer Ball Mouse, Adjustable Angle & 3 Device Connection, Thumb Control and Smooth Tracking for Laptop, PC, Mac-Gray

ProtoArc Wireless Trackball Mouse, EM03 Bluetooth Ergonomic Rechargeable Computer Ball Mouse, Adjustable Angle & 3 Device Connection, Mac-Gray

Regular price $67.11 Sale price$49.99
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ProtoArc Wireless Bluetooth Trackball Edition (Refurbished Excellent)

Excellent Grade:
Products are tested, and confirmed to be 100% fully functional. These devices do not show cosmetic signs of previous use such as marks on the screen, dints, slightly worn keys or touchpad and heavy scratches. Includes 12-month warranty.

Product Description:

  • Ergonomic Index Finger Trackball: Our index finger trackball is expertly sculpted to fit your hand naturally, promoting a comfortable, neutral wrist posture and helping to prevent strain and fatigue during long computing sessions. Its 44mm trackball can provide precise control without moving your wrist or arm
  • Ultimate Connection Freedom:PLUG and PLAY. This trackball mouse can connect to up to 3 devices via Bluetooth or USB receiver. Seamlessly switch between 3 devices – connect via bluetooth to your laptop and phone, while the included USB receiver links to your desktop or PC. Compatible with Windows, Android, Mac OS, iPad
  • Quiet Clicking & Adjustable DPI: Smooth frosted surface and quiet clicks can bring a better user experience and free your worry about bothering others and keep you stay focused while working or gaming. 5 DPI levels (200/400/800/1200/1600 DPI) allows you to change the cursor sensitivity easily for more precise tracking
  • RECHARGEABLE: The Bluetooth Trackball Mouse built-in 930mAh lithium battery. Ditch disposable batteries forever! Enjoy up to 60 days of power on a single full charge for uninterrupted productivity and planet-friendly convenience. Note: it will enter auto sleep mode if you don't use it for a few minutes to save battery and click it, the mouse will enter working mode again
  • Space Saver: Tired of constantly battling for mouse space? Our trackball liberates your workstation! It stays locked in one compact spot, clearing precious real estate on your desk for notebooks, coffee, or other essentials. Perfect for cramped offices, minimalist setups – maximize your productivity by minimizing your clutter

 

ProtoArc Trackball Wireless Mouse, EM02 Bluetooth Ergonomic Rechargeable Thumb Mouse, Adjustable Angle & 3 Device Connection, Precise Smooth Tracking for Laptop, PC, Mac, Windows

Product Overview

  • Brand: ProtoArc
  • Number of buttons: 4
  • Unit count: 1 count
  • Are batteries included?: Yes
  • Batteries required?: No

Product Features

  • Adjustable Tilt Angle: With its customizable hinge, you can easily set the trackball to a flat 0° or a tilted 15° position. This ergonomic adjustment helps maintain a natural hand posture, reducing strain and providing personalized comfort throughout the day.
  • Precise Trackball Control: Navigate efficiently without moving your wrist—simply roll the trackball for smooth, accurate cursor control. Ideal for tight or cluttered workspaces, it minimizes fatigue and maximizes productivity even in limited desk areas.
  • Multi-Device Connectivity: Seamlessly connect via 2.4GHz wireless or Bluetooth and switch between devices with one button. Offers broad compatibility across systems (note: forward/backward buttons are not compatible with Mac OS).
  • USB-C Rechargeable with Extended Standby: Features a convenient USB-C charging port and an impressive 90-day standby time on a full charge. Enjoy long-lasting performance with minimal need for recharging, ensuring reliable use day after day.
  • Quiet Clicks & Adjustable DPI: Equipped with quiet-touch buttons, perfect for late-night work without disturbing others. Five adjustable DPI settings (200/400/800/1200/1600) allow you to fine-tune cursor speed, helping you adapt smoothly to trackball use and match your workflow precision.

Product Information

Brand ‎ProtoArc
Manufacturer ‎ProtoArc
Number of items ‎1
Batteries Included ‎No
Batteries Required ‎No
Package Dimensions ‎14.6 x 12.4 x 8.89 cm; 349 Grams
Item Weight ‎349 g
Manufacturer ‎ProtoArc
Country/Region of origin ‎China
Date First Available ‎4 January 2026
Best Sellers Rank


AUSTRALIA & NEW ZEALAND

Free tracked shipping for all AU orders over $39 (after any discounts applied).
$10.95 to New Zealand.

$11 for Express shipping via Australia Post (Western Australian customers should choose Next Day Arrivals)

$17 Next Day Arrivals 1-2 Business Days (Free for orders $99+)

If you need the item as soon as possible, our ultimate Next business day arrivals option is only $17 (including to PO Boxes). Please note we are not responsible for delays in shipping or loss of parcels once they are dispatched and handed to the courier. However, we follow-up on every order we can to ensure it is delivered successfully. 

We don't charge to ship multiple items. 

UNITED STATES

$24.99 We offer express priority shipping to the US on all orders $65+. All US orders are shipped using Australia Post with a tracking number provided.

REST OF WORLD

Postage is a flat rate fee of $29. Orders are shipped using Express Priority Shipping with tracking provided.

Once you receive a confirmation email that your order has been shipped, please allow the following number of days from dispatch date for your order to arrive:

Australia Standard
Next Day Arrivals

2-5 Business days
1-2 Business days

United States

7-14 business days

Canada

7-14 business days

New Zealand

7-14 business days

Rest of World

14 business days

If you have any questions regarding your order, please contact: hello@mobiletechnica.com.au

*We currently do not ship to Mexico, Portugal, Guatemala, South Africa, North Korea, Iran, Syria, Yemen & Afghanistan due to unreliable postal services.

Mobile Technica offers a 30-day satisfaction guarantee for all mobile phone accessory products. If there are any quality issues, please send relevant images or videos to hello@mobiletechnica.com.au for review.
Check out the warranty policy for details.