ProtoArc EM03 Wireless Bluetooth Trackball Mouse Rechargeable Ergonomic RGB Backlit Rollerball Mice for Windows Mac iPad
Computer Peripherals
“The ProtoArc EM03 features high-quality zirconium oxide support bearings for smooth tracking and a 500mAh battery providing extensive multi-month runtime. While it offers reliable optical tracking and versatile Bluetooth/USB connectivity, the limited button count and stiff scroll-wheel click may hinder power users.”
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Zirconium oxide support bearings provide smooth, low-friction trackball movement out of the box.
hwp24.comProtoArc EM03 and EM01 already have zirconium bearing bearings in the form of balls
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Internal limiters prevent trackball wobble during rapid or sweeping cursor movements.
hwp24.comThe ball does not whobbles even with sudden movements, thanks to the built-in limiters
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The scroll wheel requires excessive force to click, often causing accidental scrolling.
leafandcore.comI do wish the scroll wheel was easier to click. I find I sometimes accidentally spin
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RGB lighting lacks software customization or synchronization options.
the-gadgeteer.comthe lack of customization or ability to sync with the RGB scheme
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The device features a limited total button count for advanced productivity workflows.
leafandcore.comThis mouse has five buttons. I wish it had more.
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Battery-wise, both trackball options do OK – though I suspect may fall short of the claimed 90+ days.
the-gadgeteer.comBattery-wise, both trackball options do OK – though I suspect may fall short of the claimed 90+ days.